CN104954672A - Mobile terminal and manual focusing method thereof - Google Patents
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- CN104954672A CN104954672A CN201510316973.0A CN201510316973A CN104954672A CN 104954672 A CN104954672 A CN 104954672A CN 201510316973 A CN201510316973 A CN 201510316973A CN 104954672 A CN104954672 A CN 104954672A
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Abstract
The invention discloses a mobile terminal and a manual focusing method thereof. The manual focusing method of the mobile terminal includes: confirming whether a touch action inputted by a user is a manual focusing triggering instruction or not after the mobile terminal is under a photographing mode; if yes, acquiring a rotating angle corresponding to the touch action; confirming a focusing step number according to the corresponding rotating angle of the touch action; adjusting a distance between a lens and a photosensitive area according to the focusing step number and outputting a preview image. According to the technical scheme, the mobile terminal and the manual focusing method thereof have the advantages that images in designated areas can be zoomed, so that a user can check image effect during focusing distance adjustment in real time and can photograph satisfactory pictures.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of manual focusing method and mobile terminal of mobile terminal.
Background technology
Along with the development of mobile terminal, the camera hardware of mobile terminal also constantly promotes, and the definition of camera improves constantly, and aperture slot progressively becomes increasing, background blurringly also accomplishes than being easier to.
When user is taken pictures by mobile terminal, user many times can wish to focus to assigned address, and other figure and ground obtains virtualization.Although camera can accomplish auto-focusing, differ the effect obtained surely desired by user, can not obtain satisfied picture to make user.
At this moment manually focus with regard to needs, to carry out feature to details.And user can wish can amplify focusing place when manual focus, to see the effect of mobile phone adjusting focal length in real time usually.And these operations also need directly perceived and simple.
Summary of the invention
The application mainly provides a kind of manual focusing method and mobile terminal of mobile terminal, can see in real time adjustment focusing from time image effect, enable user take satisfied picture.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the manual focusing method providing a kind of mobile terminal, described method comprises: after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing; When described touch action is the triggering command of manual focusing, obtain the rotational angle that described touch action is corresponding; The rotational angle corresponding according to described touch action, determines step number of focusing; Adjust the distance of camera lens and photosensitive region according to described focusing step number, and export preview image.
Wherein, after mobile terminal enters exposal model, confirm that whether the touch action of user's input is that the step of the triggering command of manual focusing specifically comprises: confirm whether described touch action comprises two touch points; When described touch action comprises two touch points, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in described two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate; According to starting point coordinate and the terminal point coordinate of the first movement locus of described first touch point and the second touch point, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding, and determine the second distance between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and described second touch point is corresponding; Determine whether described first distance is less than predetermined threshold value with the difference of described second distance; When described first distance is less than predetermined threshold value with the difference of described second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the second angle that X-axis is formed; When determining that the difference of described first angle and described second angle is less than predetermined angle; Enter manual focusing state.
Wherein, the step obtaining rotational angle corresponding to described touch action is specially: according to the second movement locus of described first touch point and the second movement locus of described second touch point, determine the 3rd angle formed described in the straight line that the terminal of the terminal of the second movement locus of described first touch point and the second movement locus of described second touch point forms and X-axis, wherein, the starting point of the second movement locus of described first touch point is the terminal of the first movement locus of described first touch point, the starting point of the second movement locus of described second touch point is the terminal of the first movement locus of described second touch point, difference according to described second angle and described 3rd angle determines described rotational angle, the rotational angle corresponding according to described touch action, the step of step number of determining to focus is specially: calculate the long-pending of described rotational angle and focusing coefficient, to determine step number of focusing.
Wherein, adjust the distance of camera lens and photosensitive region according to described focusing step number, and the step exporting preview image specifically comprises: determine whether described focusing step number is greater than default maximum focusing step number; When described focusing step number is greater than default maximum focusing step number, according to the described distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and export preview image; When described focusing step number is not more than described default maximum focusing step number, determine whether described focusing step number is less than default minimum focusing step number; When described focusing step number is less than described default minimum focusing step number, according to the described distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and export preview image; When described focusing step number is not less than described default minimum focusing step number, adjusts the distance of camera lens and photosensitive region according to described focusing step number, and export preview image.
Wherein, when described first distance is greater than predetermined threshold value with the difference of described second distance, the step entering manual focusing state is specially: the center between the terminal determining the terminal of the first movement locus of described first touch point and the first movement locus of described second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, picture corresponding to described central point is obtained from described full-scale preview picture, and picture corresponding for described central point is shown in described amplification display box, wherein, described full-scale preview is the full-size that described camera lens exports.
Wherein, after entering manual focusing state, described method also comprises: the position adjusting described amplification display box according to the position of described first touch point and described second touch point.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of mobile terminal, and described mobile terminal comprises: the first determination module, acquisition module, the second determination module and image preview module; Described first determination module is used for after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing; Described acquisition module is used for when described touch action is the triggering command of manual focusing, obtains the rotational angle that described touch action is corresponding; Described second determination module is used for the rotational angle corresponding according to described touch action, determines step number of focusing; Described image preview module is used for the distance according to described focusing step number adjustment camera lens and photosensitive region, and exports preview image.
Wherein, described first determination module comprises the first determining unit, acquiring unit, the second determining unit and mode adjustment unit; Described first determining unit is used for when entering exposal model at mobile terminal after, monitors user when inputting touch action, and whether confirmation touch action comprises two touch points; Described acquiring unit is used for when described touch action comprises two touch points, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in described two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate; Described second determining unit is used for starting point coordinate according to the first movement locus of described first touch point and the second touch point and terminal point coordinate, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding, and determine the second distance between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and described second touch point is corresponding; Described second determining unit is also for determining whether described first distance is less than predetermined threshold value with the difference of described second distance; When described first distance is less than predetermined threshold value with the difference of described second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the second angle that X-axis is formed; Described mode adjustment unit is used for when described second determining unit determines that the difference of described first angle and described second angle is less than predetermined angle, enters manual focusing state; Described mode adjustment unit is also for after entering manual focusing state, and the center between the terminal determining the terminal of the first movement locus of described first touch point and the first movement locus of described second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, picture corresponding to described central point is obtained from described full-scale preview picture, and picture corresponding for described central point is shown in described amplification display box, wherein, described full-scale preview is the full-size that described camera lens exports.
Wherein, described acquisition module is used for according to the second movement locus of described first touch point and the second movement locus of described second touch point, determine the straight line that the terminal of the terminal of the second movement locus of described first touch point and the second movement locus of described second touch point forms and the 3rd angle that X-axis is formed, wherein, the starting point of the second movement locus of described first touch point is the terminal of the first movement locus of described first touch point, and the starting point of the second movement locus of described second touch point is the terminal of the first movement locus of described second touch point; Difference according to described second angle and described 3rd angle determines described rotational angle; Described second determination module for calculating the long-pending of described rotational angle and focusing coefficient, to determine step number of focusing.
Wherein, described image preview module comprises determining unit and image preview unit; Described determining unit is used for determining whether described focusing step number is greater than default maximum focusing step number, and when described focusing step number is not more than described default maximum focusing step number, determines whether described focusing step number is less than default minimum focusing step number; When described determining unit determines that described focusing step number is greater than default maximum focusing step number, described image preview unit according to the described distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and exports preview image; When described determining unit determines that described focusing step number is less than described default minimum focusing step number, described image preview unit according to the described distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and exports preview image; When described determining unit determines that described focusing step number is not less than described default minimum focusing step number, described image preview unit adjusts the distance of camera lens and photosensitive region according to described focusing step number, and exports preview image.
Such scheme, after mobile terminal enters exposal model, when the touch action that mobile terminal confirms user's input is the triggering command of manual focusing, obtain the rotational angle that touch action is corresponding, the rotational angle corresponding according to touch action determines step number of focusing, and adjusts the distance of camera lens and photosensitive region according to focusing step number, export preview image, the image of appointed area can be amplified, make user's real time inspection adjust focusing from time image effect, enable user take satisfied picture.
Accompanying drawing explanation
Fig. 1 is the flow chart of manual focusing method one embodiment of the application's mobile terminal;
Fig. 2 is the flow chart of another embodiment of manual focusing method of the application's mobile terminal
Fig. 3 is the schematic diagram of the manual focusing of the application's mobile terminal;
Fig. 4 is the structural representation of the application's mobile terminal one embodiment;
Fig. 5 is the structural representation of another embodiment of the application's mobile terminal.
Embodiment
In below describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, thoroughly to understand the application.But, it will be clear to one skilled in the art that and also can realize the application in other execution mode not having these details.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders the description of the application.
Consult Fig. 1, Fig. 1 is the flow chart of manual focusing method one embodiment of the application's mobile terminal.The executive agent of the present embodiment is mobile terminal, and mobile terminal has touch-screen, can the touch action that inputs on the touchscreen of monitor user '.Mobile terminal can be mobile phone also can be panel computer etc.The manual focusing method of the mobile terminal of the present embodiment comprises the following steps:
S101: after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing.
When the camera function that user starts mobile terminal is taken pictures, after mobile terminal enters exposal model, display preview image can be amplified to reach the effect of real time inspection preview image in the appointed area that touch action is corresponding.
The touch action that mobile terminal monitor user ' inputs on mobile terminal touch screen, and the touch action that the touch action monitored is corresponding with the triggering command of the manual focusing preset is compared, to determine whether the touch action that user inputs is the triggering command entering manual focusing mode.
When mobile terminal determines that the touch action that user inputs is the triggering command of manual focusing, perform step S102.
When mobile terminal determines that the touch action that user inputs is not the triggering command of manual focusing, perform the operation that this touch action is corresponding, to realize corresponding function.
S102: when described touch action is the triggering command of manual focusing, obtain the rotational angle that described touch action is corresponding.
When mobile terminal determines that the touch action that user inputs is the triggering command of manual focusing, mobile terminal enters manual focusing mode.When mobile terminal detects that the movement locus of this touch action rotates, the rotational angle that this touch action of acquisition for mobile terminal is corresponding.
S103: the rotational angle corresponding according to described touch action, determines step number of focusing.
When the rotational angle that the touch action that acquisition for mobile terminal arrives is corresponding, according to the corresponding relation of rotational angle with focusing step number, determine the focusing step number that rotational angle corresponding to touch action is corresponding.
Wherein, the focusing step number that rotational angle is corresponding is not more than maximum focusing step number corresponding to camera in mobile terminal, and is not less than minimum focusing step number corresponding to camera in mobile terminal.
Be understandable that, save the mapping table of default rotational angle and focusing step number in mobile terminal in advance, to inquire about.
S104: the distance adjusting camera lens and photosensitive region according to described focusing step number, and export preview image.
After mobile terminal determines focusing step number, according to the focusing step number adjustment camera lens of mobile terminal and the distance of photosensitive region, with regulate the focusing of camera from, and amplify the image of appointed area, and export the preview image of appointed area, so that user checks the preview image of focusing area.
When preview image reaches user's Expected Results, user exits manual focusing mode, and the focusing of camera is from no longer changing, and mobile terminal exports the image preview effect of whole picture, so that user checks overall preview effect, and takes.
Such scheme, after mobile terminal enters exposal model, when the touch action that mobile terminal confirms user's input is the triggering command of manual focusing, obtain the rotational angle that touch action is corresponding, the rotational angle corresponding according to touch action determines step number of focusing, and adjusts the distance of camera and photosensitive region according to focusing step number, export preview image, the image of focusing area can be amplified, make user's real time inspection adjust focusing from time image effect, enable user take satisfied picture.
Consult Fig. 2, Fig. 2 is the flow chart of another embodiment of manual focusing method of the application's mobile terminal.The executive agent of the present embodiment is mobile terminal, and mobile terminal has touch-screen, can the touch action that inputs on the touchscreen of monitor user '.Mobile terminal can be mobile phone also can be panel computer etc.The manual focusing method of the mobile terminal of the present embodiment comprises the following steps:
S201: after mobile terminal enters exposal model, confirms whether described touch action comprises two touch points.
When the camera function that user starts mobile terminal is taken pictures, after mobile terminal enters exposal model, display preview image can be amplified to reach the effect of real time inspection preview image in the appointed area that touch action is corresponding.
The touch action that mobile terminal monitor user ' inputs on mobile terminal touch screen, and determine whether the touch action monitored comprises two touch points.
When mobile terminal determines that the touch action monitored comprises containing two touch points, perform step S202.
When mobile terminal determines that the touch action monitored comprises containing one or is more than or equal to three touch points, perform the operation that this touch action is corresponding, to realize corresponding function.
S202: when described touch action comprises two touch points, obtains starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in described two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate.
When mobile terminal determines that the touch action monitored comprises containing two touch points, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in two touch points, and obtain the starting point coordinate of the first movement locus and the terminal point coordinate of the second touch point.
See also Fig. 3, Fig. 3 is the schematic diagram of the manual focusing of the application's mobile terminal.
Such as, when mobile terminal determines that the touch action monitored comprises containing two touch points A, B, and the first touch point A moves to the first movement locus AA1 that A1 forms the first touch point, second touch point B moves to B1 when forming the first movement locus BB1 of the second touch point, the starting point coordinate A of the first movement locus AA1 of the first touch point and terminal A1 coordinate in acquisition for mobile terminal two touch points, and the starting point coordinate B of the first movement locus BB1 and the terminal B1 coordinate that obtain the second touch point in two touch points.
S203: according to starting point coordinate and the terminal point coordinate of the first movement locus of described first touch point and the second touch point, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding, and determine the second distance between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and described second touch point is corresponding.
Mobile terminal is according to the starting point coordinate A of the first movement locus AA1 of the first touch point A and terminal point coordinate A1, and second touch point B the starting point coordinate B of the first movement locus BB1 and terminal point coordinate B1, determine the first distance (distance namely between AB) between the starting point B that the first movement locus BB1 of the starting point A that the first movement locus AA1 of the first touch point A is corresponding and the second touch point B is corresponding, and the second distance (distance namely between A1B1) determining between the terminal B1 that the first movement locus BB1 of the terminal A1 that the first movement locus AA1 of the first touch point A is corresponding and the second touch point B is corresponding.
S204: determine whether described first distance is less than predetermined threshold value with the difference of described second distance.
Mobile terminal, after getting the first distance AB and second distance A1B1, calculates the difference of the first distance AB and second distance A1B1, to determine whether second distance A1B1 is less than predetermined threshold value relative to the difference of the first distance AB.Wherein, predetermined threshold value is for judging touch action whether as convergent-divergent instruction.Predetermined threshold value can need to arrange according to the time, was not restricted herein.
Be understandable that, the first distance AB can be single value, also can be the mean value that the first touch point A and the second touch point B move in certain hour, not be restricted herein.
When mobile terminal determines that the difference of the first distance AB and second distance A1B1 is more than or equal to predetermined threshold value, the touch action that this monitors by mobile terminal is identified as convergent-divergent instruction, mobile terminal performs zoom operations, carries out convergent-divergent with the region corresponding to current touch action.
When mobile terminal determines that the difference of the first distance AB and second distance A1B1 is less than predetermined threshold value, perform step S205.
S205: when described first distance is less than predetermined threshold value with the difference of described second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the second angle that X-axis is formed.
When mobile terminal determines that the difference of the first distance AB and second distance A1B1 is less than predetermined threshold value, determine the straight line AB that the starting point B that the first movement locus BB1 of the starting point A that the first movement locus AA1 of the first touch point A is corresponding and the second touch point B is corresponding forms and the first angle θ 1 (not shown) that X-axis is formed, and determine the straight line A1B1 that the terminal B1 that the first movement locus BB1 of the terminal A1 that the first movement locus AA1 of the first touch point A is corresponding and the second touch point B is corresponding forms and the second angle θ 2 (not shown) that X-axis is formed.
Mobile terminal determines whether the difference of the first angle θ 1 and the second angle θ 2 is less than predetermined angle, when the first angle θ 1 and the second angle θ 2 is more than or equal to predetermined angle, is left intact; When the first angle θ 1 and the second angle θ 2 is less than predetermined angle, perform step S206.
Wherein, predetermined angle is for judging touch action whether as the triggering command of manual focusing.
S206: when determining that the difference of described first angle and described second angle is less than predetermined angle, enter manual focusing state.
When the first angle θ 1 and the second angle θ 2 is less than predetermined angle, mobile terminal judges the triggering command of this touch action monitored as manual focusing, mobile terminal enters manual focusing mode, so that manual focusing is carried out in the user region corresponding to touch action.
Second angle θ 2 is identified as the initial angle of manual focusing mode by mobile terminal.
Wherein, when the first distance is greater than predetermined threshold value with the difference of second distance, the step entering manual focusing state is specially:
Center between the terminal determining the terminal of the first movement locus of the first touch point and the first movement locus of the second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, obtains picture corresponding to central point, and picture corresponding for central point is shown in amplification display box from full-scale preview picture, wherein, full-scale preview is the full-size that camera lens exports.
Such as, when the first angle θ 1 and the second angle θ 2 is less than predetermined angle, mobile terminal determines the center between the terminal B1 of the terminal A1 of the first movement locus AA1 of the first touch point A and the first movement locus BB1 of the second touch point B.That is, the center of A1B1.
Mobile terminal, after the center getting A1B1, determines the position of enlarged display area according to the center of A1B1.Such as, in the enlarged display area of the center of A1B1 display 1/3rd screen sizes, but can be not limited to this, the size of enlarged display area can also go 1/4th of movement and terminal screen size.
Image preview mode, after the position determining enlarged display area, is set to full-scale preview by mobile terminal, obtains picture corresponding to central point, and picture corresponding for central point is shown in amplification display box from full-scale preview picture.Wherein, full-scale preview is the full-size that camera lens exports.
Mobile terminal, after entering manual focusing state, performs step S207 and step S211.
S207: according to the second movement locus of described first touch point and the second movement locus of described second touch point, determine the 3rd angle formed described in the straight line that the terminal of the terminal of the second movement locus of described first touch point and the second movement locus of described second touch point forms and X-axis, wherein, the starting point of the second movement locus of described first touch point is the terminal of the first movement locus of described first touch point, and the starting point of the second movement locus of described second touch point is the terminal of the first movement locus of described second touch point.
After mobile terminal enters manual focusing mode, when detecting that the first touch point A and the second touch point B moves, obtain the second movement locus A1A2 of the first touch point A and the second movement locus B1B2 of the second touch point B, and according to the second movement locus A1A2 of the first touch point A and the second movement locus B1B2 of the second touch point B, determine the straight line A2B2 that the terminal B2 of the terminal A2 of the second movement locus A1A2 of the first touch point A and the second movement locus B1B2 of the second touch point B forms and the 3rd angle θ 3 that X-axis is formed.That is, the 3rd angle θ 3 is the angle of A2B2 and X-axis stroke.
Wherein, the starting point A1 of the second movement locus A1A2 of the first touch point A is the terminal A1 of the first movement locus AA1 of the first touch point, and the starting point B1 of the second movement locus B1B2 of the second touch point B is the terminal B1 of the first movement locus BB1 of the second touch point B.
S208: the difference according to described second angle and described 3rd angle determines described rotational angle.
Mobile terminal, after getting the 3rd angle θ 3, calculates the difference of the second angle θ 2 and the 3rd angle θ 3, and determines according to the difference of the second angle θ 2 and the 3rd angle θ 3 the rotational angle θ that A1A2 and B1B2 is corresponding.
Be understandable that, when the first touch point the second movement locus relative to the first movement locus be rotate clockwise time, rotational angle θ can reduce; When the first touch point the second movement locus relative to the first movement locus be rotate counterclockwise time, rotational angle θ can increase.
S209: calculate the long-pending of described rotational angle and focusing coefficient, to determine step number of focusing.
Mobile terminal is after determining the rotational angle θ that A1A2 and B1B2 is corresponding, and calculating rotational angle θ is long-pending with focusing coefficient lambda, determines step number of focusing.
Such as, step number of focusing can be expressed as a+=θ * λ.Suppose current focusing step number a=5, during a+=2, so according to after the focusing step number adjustment calculated, a=7.
S210: the distance adjusting camera lens and photosensitive region according to described focusing step number, and export preview image.
After mobile terminal determines focusing step number, according to the focusing step number adjustment camera lens of mobile terminal and the distance of photosensitive region, with the focusing of adjustable lens from, thus zoom in or out the image of focusing area (enlarged display area), and export the preview image of focusing area, so that user checks the preview image of focusing area.
Wherein, adjust the distance of camera lens and photosensitive region according to focusing step number, and the step exporting preview image comprises:
Determine whether focusing step number is greater than default maximum focusing step number; When step number of focusing is greater than default maximum focusing step number, according to the distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and export preview image; When step number of focusing is not more than default maximum focusing step number, determine whether focusing step number is less than default minimum focusing step number; When step number of focusing is less than default minimum focusing step number, according to the distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and export preview image; When step number of focusing is not less than default minimum focusing step number, adjusts the distance of camera lens and photosensitive region according to focusing step number, and export preview image.
Such as, mobile terminal, after determining focusing step number, determines whether focusing step number is greater than default maximum focusing step number.When step number of focusing is greater than default maximum focusing step number, according to the distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and export preview image.
When step number of focusing is less than or equal to default maximum focusing step number, mobile terminal determines whether focusing step number is less than default minimum focusing step number.
When step number of focusing is less than default minimum focusing step number, mobile terminal according to the distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and exports preview image.When step number of focusing is more than or equal in time presetting minimum focusing step number, adjust the distance of camera lens and photosensitive region according to focusing step number, and export preview image.
Wherein, maximum step number is the maximum focusing step number that in mobile terminal, camera is corresponding, and minimum step number is the minimum focusing step number that in mobile terminal, camera is corresponding.
When preview image reaches user's Expected Results, user exits manual focusing mode, and the focusing of camera is from no longer changing, and mobile terminal exports the image preview effect of whole picture, so that user checks overall preview effect, and takes.
Be understandable that, the distance of camera lens and photosensitive region is less, and namely camera lens is the closer to photosensitive region, and the definition of the image of scenery is lower nearby, and scenery is by virtualization nearby, and the definition of scene image is higher at a distance.The distance of camera and photosensitive region is larger, and namely camera lens is more away from photosensitive region, and the definition of the image of scenery is higher nearby, and the definition of the image of scenery is lower at a distance, and scenery is by virtualization at a distance.
S211: after entering manual focusing state, adjusts the position of described amplification display box according to the position of described first touch point and described second touch point.
After mobile terminal enters manual focusing state, amplify the position of display box according to the position adjustment of the first touch point A and the second touch point B.Such as, generation second movement locus A1A2 is moved in the first touch point, when generation second movement locus B1B2 is moved in the second touch point, amplifies the position of display box according to the position adjustment of the position of the central point of A1B1 and the central point of A2B2.
Such scheme, after mobile terminal enters exposal model, when the touch action that mobile terminal confirms user's input is the triggering command of manual focusing, obtain the rotational angle that touch action is corresponding, the rotational angle corresponding according to touch action determines step number of focusing, and the distance of camera lens and photosensitive region is adjusted according to focusing step number, export preview image, the image of focusing area can be zoomed in or out, adjust the definition of the image of scenery nearby and the image of distant place scenery, make user's real time inspection adjust focusing from time image effect, user is enable to take satisfied picture.
Refer to Fig. 4, Fig. 4 is the structural representation of the application's mobile terminal one embodiment.The mobile terminal of the present embodiment has touch-screen, can the touch action that inputs on the touchscreen of monitor user '.Mobile terminal can be mobile phone also can be panel computer etc.Each module that the present embodiment comprises, for performing each step in embodiment corresponding to Fig. 1, specifically refers to the associated description of embodiment corresponding to Fig. 1 and Fig. 1, does not repeat herein.The mobile terminal of the present embodiment comprises: the first determination module 410, acquisition module 420, second determination module 430 and image preview module 440.
First determination module 410, for after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing.Such as, the first determination module 410, after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing.Confirmation result sends to acquisition module 420 by the first determination module 410.
Acquisition module 420 sends confirm result for receiving the first determination module 410, when confirming that result be touch action is the triggering command of manual focusing, obtains the rotational angle that touch action is corresponding.Such as, acquisition module 420 receives the first determination module 410 and sends and confirm result, when confirming that result be touch action is the triggering command of manual focusing, obtains the rotational angle that touch action is corresponding.Rotational angle corresponding for touch action sends to the second determination module 430 by acquisition module 420.
Rotational angle corresponding to touch action that second determination module 430 sends for receiving acquisition module 420, the rotational angle corresponding according to touch action, determines step number of focusing.Such as, the second determination module 430 receives rotational angle corresponding to touch action that acquisition module 420 sends, and the rotational angle corresponding according to touch action determines step number of focusing.Focusing step number sends to image preview module 440 by the second determination module 430.
The focusing step number that image preview module 440 sends for receiving the second determination module 430, adjusts the distance of camera lens and photosensitive region, and exports preview image according to described focusing step number.
Such as, image preview module 440 receives the focusing step number that the second determination module 430 sends, and adjusts the distance of camera lens and photosensitive region, and export preview image according to described focusing step number.
Such scheme, after mobile terminal enters exposal model, when the touch action that mobile terminal confirms user's input is the triggering command of manual focusing, obtain the rotational angle that touch action is corresponding, the rotational angle corresponding according to touch action determines step number of focusing, and adjusts the distance of camera lens and photosensitive region according to focusing step number, export preview image, the image of focusing area can be amplified, make user's real time inspection adjust focusing from time image effect, enable user take satisfied picture.
Refer to Fig. 5, Fig. 5 is the structural representation of another embodiment of the application's mobile terminal.The mobile terminal of the present embodiment has touch-screen, can the touch action that inputs on the touchscreen of monitor user '.Mobile terminal can be mobile phone also can be panel computer etc.Each module that the present embodiment comprises, for performing each step in embodiment corresponding to Fig. 2, specifically refers to the associated description of embodiment corresponding to Fig. 2 and Fig. 2, does not repeat herein.The mobile terminal of the present embodiment comprises: the first determination module 510, acquisition module 520, second determination module 530 and image preview module 540.Wherein, the first determination module 510 comprises the first determining unit 511, acquiring unit 512, second determining unit 513 and mode adjustment unit 514.Image preview module 540 comprises determining unit 541 and image preview unit 542.
First determining unit 511, for after entering exposal model at mobile terminal, monitors user when inputting touch action, confirms whether touch action comprises two touch points.Such as, the first determining unit 511, after entering exposal model at mobile terminal, monitors user when inputting touch action, confirms whether touch action comprises two touch points.Confirmation result is sent to acquiring unit 512 by the first determining unit 511.
The confirmation result that acquiring unit 512 sends for receiving the first determining unit 511, when confirm result be touch action comprise two touch points time, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate.
Such as, acquiring unit 512 receives the confirmation result that the first determining unit 511 sends, when confirm result be touch action comprise two touch points time, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate.Acquiring unit 512 is by the starting point coordinate of the first movement locus of the first touch point in two touch points obtaining and terminal point coordinate, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate send to the second determining unit 513.
Second determining unit 513 is for the starting point coordinate of the first movement locus of the first touch point in two touch points receiving acquiring unit 512 and send and terminal point coordinate, and second touch point the starting point coordinate of the first movement locus and terminal point coordinate, according to starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point and the second touch point, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of the first touch point is corresponding and the second touch point is corresponding, and the second distance determining between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and the second touch point is corresponding.
Such as, second determining unit 513 receives starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in two touch points of acquiring unit 512 transmission, and second touch point the starting point coordinate of the first movement locus and terminal point coordinate, according to starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point and the second touch point, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of the first touch point is corresponding and the second touch point is corresponding, and the second distance determining between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and the second touch point is corresponding.
Second determining unit 513 is also for determining whether the first distance is less than predetermined threshold value with the difference of second distance; When the first distance is less than predetermined threshold value with the difference of second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of the first touch point is corresponding and the second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and the second touch point is corresponding forms and the second angle that X-axis is formed.Second determining unit 513 determines whether the difference of the first angle and the second angle is less than predetermined angle.
Such as, the second determining unit 513 determines whether the first distance is less than predetermined threshold value with the difference of second distance; When the first distance is less than predetermined threshold value with the difference of second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of the first touch point is corresponding and the second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and the second touch point is corresponding forms and the second angle that X-axis is formed, and determine whether the difference of the first angle and the second angle is less than predetermined angle.Determination result is sent to mode adjustment unit 514 by the second determining unit 513.
The determination result that mode adjustment unit 514 sends for receiving the second determining unit 513, when the difference that determination result is the first angle and the second angle is less than predetermined angle, enters manual focusing state.Such as, mode adjustment unit 514 receives the determination result that the second determining unit 513 sends, and when the difference that determination result is the first angle and the second angle is less than predetermined angle, enters manual focusing state.
Mode adjustment unit 514 is also for after entering manual focusing state, and the center between the terminal determining the terminal of the first movement locus of the first touch point and the first movement locus of the second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, obtains picture corresponding to central point, and picture corresponding for central point is shown in amplification display box from full-scale preview picture, wherein, full-scale preview is the full-size that camera lens exports.
Such as, after entering manual focusing state, mode adjustment unit 514 determines the center between the terminal of the terminal of the first movement locus of the first touch point and the first movement locus of the second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, obtains picture corresponding to central point, and picture corresponding for central point is shown in amplification display box from full-scale preview picture, wherein, full-scale preview is the full-size that described camera exports.After entering manual focusing state, mode adjustment unit 514 sends announcement information to acquisition module 520.
The announcement information that acquisition module 520 sends for receiving mode adjustment unit 514, obtain the second movement locus of the first touch point and the second movement locus of the second touch point, according to the second movement locus of the first touch point and the second movement locus of the second touch point, determine the straight line that the terminal of the terminal of the second movement locus of the first touch point and the second movement locus of the second touch point forms and the 3rd angle that X-axis is formed, wherein, the starting point of the second movement locus of the first touch point is the terminal of the first movement locus of the first touch point, the starting point of the second movement locus of the second touch point is the terminal of the first movement locus of the second touch point, according to the difference determination rotational angle of the second angle and the 3rd angle.
Such as, the announcement information that acquisition module 520 receiving mode adjustment unit 514 sends, obtain the second movement locus of the first touch point and the second movement locus of the second touch point, according to the second movement locus of the first touch point and the second movement locus of the second touch point, determine the straight line that the terminal of the terminal of the second movement locus of the first touch point and the second movement locus of the second touch point forms and the 3rd angle that X-axis is formed, wherein, the starting point of the second movement locus of the first touch point is the terminal of the first movement locus of the first touch point, the starting point of the second movement locus of the second touch point is the terminal of the first movement locus of the second touch point, according to the difference determination rotational angle of the second angle and the 3rd angle.
The rotational angle determined is sent to the second determination module 530 by acquisition module 520.
Second determination module 530 is for receiving the rotational angle of the determination of acquisition module 520 transmission, and calculating rotational angle is long-pending with focusing coefficient, to determine focusing step number.
Such as, the second determination module 530 receives the rotational angle of the determination that acquisition module 520 sends, and calculating rotational angle is long-pending with focusing coefficient, to determine step number of focusing.Focusing step number is sent to the determining unit 541 of image preview module 540 by the second determination module 530.
The determining unit 541 of image preview module 540 is for receiving the focusing step number of the second determination module 530 transmission, determine whether focusing step number is greater than default maximum focusing step number, and when step number of focusing is not more than default maximum focusing step number, determine whether focusing step number is less than default minimum focusing step number.Such as, the determining unit 541 of image preview module 540 receives the focusing step number of the second determination module 530 transmission, determine whether focusing step number is greater than default maximum focusing step number, and when step number of focusing is not more than default maximum focusing step number, determine whether focusing step number is less than default minimum focusing step number.Determination result is sent to image preview unit 542 by determining unit 541.
The determination result that image preview unit 542 sends for receiving determining unit 541, when determining unit 541 determines that focusing step number is greater than default maximum focusing step number, image preview unit 542 according to the distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and exports preview image; When determining unit 541 determines that focusing step number is less than default minimum focusing step number, image preview unit 542 according to the distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and exports preview image; When determining unit 541 determines that focusing step number is not less than default minimum focusing step number, image preview unit 542 adjusts the distance of camera lens and photosensitive region according to focusing step number, and exports preview image.
Such scheme, after mobile terminal enters exposal model, when the touch action that mobile terminal confirms user's input is the triggering command of manual focusing, obtain the rotational angle that touch action is corresponding, the rotational angle corresponding according to touch action determines step number of focusing, and the distance of camera lens and photosensitive region is adjusted according to focusing step number, export preview image, the image of focusing area can be zoomed in or out, adjust the definition of the image of scenery nearby and the image of distant place scenery, make user's real time inspection adjust focusing from time image effect, user is enable to take satisfied picture.
In more than describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, thoroughly to understand the application.But, it will be clear to one skilled in the art that and also can realize the application in other execution mode not having these details.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders the description of the application.
Claims (10)
1. a manual focusing method for mobile terminal, is characterized in that, described method comprises:
After mobile terminal enters exposal model, confirm that whether the touch action of user's input is the triggering command of manual focusing;
When described touch action is the triggering command of manual focusing, obtain the rotational angle that described touch action is corresponding;
The rotational angle corresponding according to described touch action, determines step number of focusing;
Adjust the distance of camera lens and photosensitive region according to described focusing step number, and export preview image.
2. method according to claim 1, is characterized in that, after mobile terminal enters exposal model, confirms that whether the touch action of user's input is that the step of the triggering command of manual focusing specifically comprises: confirm whether described touch action comprises two touch points;
When described touch action comprises two touch points, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in described two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate;
According to starting point coordinate and the terminal point coordinate of the first movement locus of described first touch point and the second touch point, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding, and determine the second distance between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and described second touch point is corresponding;
Determine whether described first distance is less than predetermined threshold value with the difference of described second distance;
When described first distance is less than predetermined threshold value with the difference of described second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the second angle that X-axis is formed;
When determining that the difference of described first angle and described second angle is less than predetermined angle; Enter manual focusing state.
3. method according to claim 2, is characterized in that, the step obtaining rotational angle corresponding to described touch action is specially:
According to the second movement locus of described first touch point and the second movement locus of described second touch point, determine the 3rd angle formed described in the straight line that the terminal of the terminal of the second movement locus of described first touch point and the second movement locus of described second touch point forms and X-axis, wherein, the starting point of the second movement locus of described first touch point is the terminal of the first movement locus of described first touch point, and the starting point of the second movement locus of described second touch point is the terminal of the first movement locus of described second touch point;
Difference according to described second angle and described 3rd angle determines described rotational angle;
The rotational angle corresponding according to described touch action, determine that the step of focusing step number is specially:
Calculate the long-pending of described rotational angle and focusing coefficient, to determine step number of focusing.
4. method according to claim 3, is characterized in that, adjust the distance of camera lens and photosensitive region, and the step exporting preview image specifically comprises according to described focusing step number:
Determine whether described focusing step number is greater than default maximum focusing step number;
When described focusing step number is greater than default maximum focusing step number, according to the described distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and export preview image;
When described focusing step number is not more than described default maximum focusing step number, determine whether described focusing step number is less than default minimum focusing step number;
When described focusing step number is less than described default minimum focusing step number, according to the described distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and export preview image;
When described focusing step number is not less than described default minimum focusing step number, adjusts the distance of camera lens and photosensitive region according to described focusing step number, and export preview image.
5. method according to claim 2, is characterized in that, when described first distance is greater than predetermined threshold value with the difference of described second distance, the step entering manual focusing state is specially:
Center between the terminal determining the terminal of the first movement locus of described first touch point and the first movement locus of described second touch point, to determine the position of amplifying display box;
Preview mode is set to full-scale preview, picture corresponding to described central point is obtained from described full-scale preview picture, and picture corresponding for described central point is shown in described amplification display box, wherein, described full-scale preview is the full-size that described camera lens exports.
6. method according to claim 5, is characterized in that, after entering manual focusing state, described method also comprises: the position adjusting described amplification display box according to the position of described first touch point and described second touch point.
7. a mobile terminal, is characterized in that, described mobile terminal comprises: the first determination module, acquisition module, the second determination module and image preview module;
Described first determination module is used for after mobile terminal enters exposal model, confirms that whether the touch action of user's input is the triggering command of manual focusing;
Described acquisition module is used for when described touch action is the triggering command of manual focusing, obtains the rotational angle that described touch action is corresponding;
Described second determination module is used for the rotational angle corresponding according to described touch action, determines step number of focusing;
Described image preview module is used for the distance according to described focusing step number adjustment camera lens and photosensitive region, and exports preview image.
8. mobile terminal according to claim 7, is characterized in that, described first determination module comprises the first determining unit, acquiring unit, the second determining unit and mode adjustment unit;
Described first determining unit is used for when entering exposal model at mobile terminal after, monitors user when inputting touch action, and whether confirmation touch action comprises two touch points;
Described acquiring unit is used for when described touch action comprises two touch points, obtain starting point coordinate and the terminal point coordinate of the first movement locus of the first touch point in described two touch points, and the starting point coordinate of the first movement locus of the second touch point and terminal point coordinate;
Described second determining unit is used for starting point coordinate according to the first movement locus of described first touch point and the second touch point and terminal point coordinate, determine the first distance between the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding, and determine the second distance between the terminal that the first movement locus of the terminal that the first movement locus of the first touch point is corresponding and described second touch point is corresponding;
Described second determining unit is also for determining whether described first distance is less than predetermined threshold value with the difference of described second distance; When described first distance is less than predetermined threshold value with the difference of described second distance, determine the straight line that the starting point that the first movement locus of the starting point that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the first angle that X-axis is formed, and determine the straight line that the terminal that the first movement locus of the terminal that the first movement locus of described first touch point is corresponding and described second touch point is corresponding forms and the second angle that X-axis is formed;
Described mode adjustment unit is used for when described second determining unit determines that the difference of described first angle and described second angle is less than predetermined angle, enters manual focusing state;
Described mode adjustment unit is also for after entering manual focusing state, and the center between the terminal determining the terminal of the first movement locus of described first touch point and the first movement locus of described second touch point, to determine the position of amplifying display box; Preview mode is set to full-scale preview, picture corresponding to described central point is obtained from described full-scale preview picture, and picture corresponding for described central point is shown in described amplification display box, wherein, described full-scale preview is the full-size that described camera lens exports.
9. mobile terminal according to claim 8, it is characterized in that, described acquisition module is used for according to the second movement locus of described first touch point and the second movement locus of described second touch point, determine the straight line that the terminal of the terminal of the second movement locus of described first touch point and the second movement locus of described second touch point forms and the 3rd angle that X-axis is formed, wherein, the starting point of the second movement locus of described first touch point is the terminal of the first movement locus of described first touch point, the starting point of the second movement locus of described second touch point is the terminal of the first movement locus of described second touch point, difference according to described second angle and described 3rd angle determines described rotational angle,
Described second determination module for calculating the long-pending of described rotational angle and focusing coefficient, to determine step number of focusing.
10. mobile terminal according to claim 9, is characterized in that, described image preview module comprises determining unit and image preview unit;
Described determining unit is used for determining whether described focusing step number is greater than default maximum focusing step number, and when described focusing step number is not more than described default maximum focusing step number, determines whether described focusing step number is less than default minimum focusing step number;
When described determining unit determines that described focusing step number is greater than default maximum focusing step number, described image preview unit according to the described distance presetting maximum focusing step number adjustment camera lens and photosensitive region, and exports preview image;
When described determining unit determines that described focusing step number is less than described default minimum focusing step number, described image preview unit according to the described distance presetting minimum focusing step number adjustment camera lens and photosensitive region, and exports preview image; When described determining unit determines that described focusing step number is not less than described default minimum focusing step number, described image preview unit adjusts the distance of camera lens and photosensitive region according to described focusing step number, and exports preview image.
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