CN110363832A - Method for generating captions and device - Google Patents
Method for generating captions and device Download PDFInfo
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- CN110363832A CN110363832A CN201910671849.4A CN201910671849A CN110363832A CN 110363832 A CN110363832 A CN 110363832A CN 201910671849 A CN201910671849 A CN 201910671849A CN 110363832 A CN110363832 A CN 110363832A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/0486—Drag-and-drop
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/60—Editing figures and text; Combining figures or text
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Abstract
This application discloses a kind of method for generating captions and devices, comprising: according to the text that user inputs, generates off screen subtitle picture；Wherein, off screen subtitle picture is the subtitle picture for being stored in memory and not appearing on display interface；The font size of off screen subtitle is according to the resolution setting of display interface and the font size of off screen subtitle is not less than font size threshold value；By the size of the caption area of the size reduction of off screen subtitle picture to user display interface adjusted, final subtitle picture is obtained；Final subtitle picture is shown in user's caption area adjusted.When reducing due to subtitle picture, the clarity of subtitle will not be reduced.And the font size of off screen subtitle is according to the resolution setting of display interface in the application and the font size of off screen subtitle is not less than font size threshold value, when the size for the caption area that off screen subtitle picture is therefore contracted to current display interface, the clarity of off screen subtitle will not be reduced.
Description
Technical field
The present invention relates to MultiMedia Field more particularly to a kind of method for generating captions and device.
Background technique
With the continuous development of multimedia related technologies, in the multimedia software such as many live streaming platforms, video production platform,
All has the function of adding and adjust subtitle in the display interface.For example, main broadcaster can add in some live streaming platforms
Subtitle is illustrated the content of current live, the interaction effect between enhancing and spectators.Meanwhile main broadcaster can also be to addition subtitle
Size be adjusted setting, in order to spectators viewing.
In the prior art, when user is adjusted the size of the subtitle of addition, it will usually show boundary using mouse drag
The mode of caption area on face is adjusted.The size of subtitle in caption area, can be with the change of caption area size
And adaptable change, user need to only adjust caption area to the size needed for oneself, what subtitle will be adapted is adjusted to
Size needed for user.However, being to allow the subtitle in caption area with picture in fact when carrying out drag operation to caption area
Form amplifies, and there is no the font sizes for changing subtitle itself.Such as the font size of subtitle is No. 36, to the caption area of the subtitle
It is directly to be amplified to the subtitle picture of No. 36 sizes when pulling amplification.Therefore the subtitle picture of small type size is pulled into amplification
When, the clarity of subtitle can reduce.
Summary of the invention
Based on above-mentioned the deficiencies in the prior art, present applicant proposes a kind of method for generating captions and devices, are improved with realizing
The clarity of subtitle.
To solve the above problems, the scheme now proposed is as follows:
First aspect present invention discloses a kind of method for generating captions, comprising:
According to the text that user inputs, off screen subtitle picture is generated；Wherein, the off screen subtitle picture is to be stored in memory
In and do not appear in the subtitle picture on display interface；The resolution setting of the font size foundation display interface of the off screen subtitle,
And the font size of the off screen subtitle is not less than font size threshold value；
By the size of the caption area of the size reduction of the off screen subtitle picture to user's display interface adjusted, obtain
To final subtitle picture；
The final subtitle picture is shown in user caption area adjusted.
Optionally, in above-mentioned method for generating captions, the size of the caption area of user's display interface adjusted
Calculation, comprising:
The distance that drag operation and movement are executed according to user, calculates the subtitle of user display interface adjusted
The size in region, wherein the drag operation of the user is used to adjust the size of the caption area of the display interface.
Optionally, in above-mentioned method for generating captions, the size reduction by the off screen subtitle picture to user's tune
The size of the caption area of display interface after whole obtains final subtitle picture, comprising:
According to the size of the caption area of user display interface adjusted and the ruler of the off screen subtitle picture
It is very little, picture scaling is calculated；
It is according to the picture scaling, the size reduction of the off screen subtitle picture is adjusted aobvious to the user
The size for showing the caption area at interface obtains the final subtitle picture.
Optionally, described according to the picture scaling in above-mentioned method for generating captions, by the off screen subtitle figure
The size reduction of piece to user display interface adjusted caption area size, obtain the final subtitle picture,
Include:
According to the picture scaling, using Image Zooming Algorithm by the size reduction of the off screen subtitle picture to institute
The size for stating the caption area of user's display interface adjusted obtains the final subtitle picture.
Optionally, in above-mentioned method for generating captions, the off screen subtitle is drawn using vector graphics rendering algorithm.
Second aspect of the present invention discloses a kind of caption generation device, comprising:
Generation unit, the text for being inputted according to user generate off screen subtitle picture；Wherein, the off screen subtitle figure
Piece is the subtitle picture for being stored in memory and not appearing on display interface；The font size of the off screen subtitle is according to display circle
The font size of the resolution setting in face and the off screen subtitle is not less than font size threshold value；
First reducing unit, for by the size reduction of the off screen subtitle picture to user's display interface adjusted
The size of caption area obtains final subtitle picture；
Display unit, for showing the final subtitle picture in user caption area adjusted.
Optionally, in above-mentioned caption generation device, further includes:
First computing unit calculates user's adjustment for executing the distance of drag operation and movement according to user
The size of the caption area of display interface afterwards, wherein the drag operation of the user is used to adjust the word of the display interface
The size in curtain region.
Optionally, in above-mentioned caption generation device, first reducing unit, comprising:
Second computing unit, for according to the size of the caption area of user display interface adjusted and described
The size of off screen subtitle picture, is calculated picture scaling；
Second reducing unit is used for according to the picture scaling, extremely by the size reduction of the off screen subtitle picture
The size of the caption area of user's display interface adjusted obtains the final subtitle picture.
Optionally, in above-mentioned caption generation device, second reducing unit, comprising:
Second reduces subelement, for according to the picture scaling, using Image Zooming Algorithm by the off screen word
Curtain picture size reduction to user display interface adjusted caption area size, obtain the final subtitle figure
Piece.
Optionally, in above-mentioned caption generation device, the off screen subtitle is drawn using vector graphics rendering algorithm.
It can be seen from the above technical proposal that in method for generating captions provided by the present application, according to the text that user inputs,
Generate off screen subtitle picture.Wherein, off screen subtitle picture is the subtitle figure for being stored in memory and not appearing on display interface
Piece；The font size of off screen subtitle is according to the resolution setting of display interface and the font size of off screen subtitle is not less than font size threshold value.It will be from
Shield subtitle picture size reduction to user's display interface adjusted caption area size, obtain final subtitle picture；
And final subtitle picture is shown in the caption area of user's display interface adjusted.When being reduced due to subtitle picture, no
The clarity of subtitle can be reduced.And resolution setting and off screen word of the font size of off screen subtitle according to display interface in the application
The font size of curtain is not less than font size threshold value, therefore off screen subtitle picture is contracted to the size of the caption area of current display interface
When, the clarity of off screen subtitle will not reduce.It solves in the prior art, since user increases the caption area of display interface
When size, cause subtitle clarity decline the problem of.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the effect pair for pulling the subtitle and the subtitle that font size amplification is adjusted through user of amplification through user in the prior art
Compare schematic diagram；
Fig. 2 is a kind of flow diagram of method for generating captions disclosed by the embodiments of the present invention；
Fig. 3 is a kind of schematic diagram of off screen subtitle picture disclosed by the embodiments of the present invention；
Fig. 4 is the schematic diagram that a kind of subtitle disclosed by the embodiments of the present invention pulls adjustment process；
Fig. 5 is the flow diagram for the method that a kind of pair of off screen subtitle picture disclosed by the embodiments of the present invention is reduced；
Fig. 6 is a kind of structural schematic diagram of caption generation device disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the prior art, the size for adjusting the subtitle of display interface mainly passes through two ways.First way is to aobvious
Show that the font size of the subtitle at interface is configured, to realize the size of adjustment subtitle.But this mode is by being arranged after font size again
The effect for observing the subtitle presented, just knows whether the font size of current setting is suitable.Therefore it needs to obtain by repeatedly debugging
To the size of customer satisfaction system subtitle.
The second way is adjusted by the way of the caption area on mouse drag display interface.When user pulls
When the size of the caption area at Zoom display interface, the size of the subtitle in caption area can changing with caption area size
Become and adaptable change.Second way user can observe the variation of the size of subtitle in real time during the adjustment, can
Easily subtitle is adjusted to size needed for user.It is to allow word in fact however, when the second way zooms in and out subtitle
Subtitle in curtain region is amplified in the form of picture, and there is no the font sizes for changing subtitle itself.Such as the font size of subtitle is
No. 36, be directly to amplify to the subtitle picture of No. 36 sizes when pulling amplification to the caption area of the subtitle.Refering to fig. 1,
It can be seen that when the subtitle dragging by No. 36 is amplified to the size as No. 72 subtitles, it is clear that the clarity of No. 36 subtitles is more
It is low.Because the clarity of subtitle can reduce when subtitle picture is pulled amplification.
If user re-starts setting, example to the font size for pulling amplified subtitle using first way again at this time
The font size that No. 36 words of amplification are pulled in Fig. 1 No. 50 words are rearranged into such as, at this time subtitle can be according to current setting
Font size adjusts the size of subtitle, and user by repeatedly attempting, until setting No. 72 words for font size, can just obtain user again
The size for the subtitle for needing to present.
Therefore, the first subtitle adjustment mode is needed by repeatedly attempting that font size, word needed for just capable of obtaining user is arranged
Curtain size, the process of adjustment are complex.Although subtitle easily can be adjusted to user by second of subtitle adjustment mode
Required size, but when the dragged amplification of subtitle picture, subtitle clarity can decline again.Both subtitle adjustment modes are not
High definition subtitle needed for user capable of simply being obtained.
Based on above-mentioned the problems of the prior art, referring to Fig.2, the embodiment of the present application discloses a kind of method for generating captions,
Can be applied to tablet computer, mobile phone, laptop etc. has in the electronic equipment of display screen, specifically includes the following steps:
S201, the text inputted according to user, generate off screen subtitle picture.
Wherein, off screen subtitle picture is the subtitle picture for being stored in memory and not appearing on display interface.Off screen word
The font size of curtain is according to the resolution setting of display interface and the font size of off screen subtitle is not less than font size threshold value.Off screen subtitle picture
Length-width ratio with the length-width ratio of the caption area of display interface be it is equal, therefore off screen subtitle picture according to a certain percentage into
Row scaling is adjustable into the size of the caption area of display interface.Wherein, off screen subtitle picture contracts according to a certain percentage
It puts and refers to that the length of off screen subtitle picture scales according to a certain percentage and the width of off screen subtitle picture is also in same ratio
Scaling.The size of picture refers to the length of picture and the width of picture.By the size adjusting of off screen subtitle picture at display circle
The size of the caption area in face refers to the length by the length adjustment of off screen subtitle picture at the caption area of display interface,
By the width adjustment of off screen subtitle picture at the width of the caption area of display interface.The size and off screen word of off screen subtitle picture
The font size correlation of curtain.The font size of off screen subtitle is bigger, and the size of off screen subtitle picture is bigger.
When the font size of off screen subtitle is greater than or equal to font size threshold value, illustrate the font size of off screen subtitle for current display
It is a sufficiently large font size for interface.When the sufficiently large off screen subtitle picture of font size is reduced, subtitle it is clear
Degree not will receive too big influence.Therefore the font size of off screen subtitle is arranged to the value not less than font size threshold value, then to off screen subtitle
Picture is reduced, the subtitle of available high definition.
And for different display interfaces, the sufficiently large standard of the font size of off screen subtitle is also different, therefore off screen subtitle
Font size threshold value be the Multiple factors such as the resolution ratio for considering display interface, display interface size and set, when off screen subtitle
Font size when be greater than or equal to font size threshold value, clarity will not reduce after off screen subtitle picture at this time reduces.For phase
For the display interface of size, the font size threshold value of the higher display interface of resolution ratio is lower；High-resolution display interface
Illustrate that clarity is higher, even if therefore the font size of subtitle is not very big, it appears that also than more visible.In addition, font size threshold value is also examined
The other factors such as the size of display interface are considered.The off screen subtitle picture that step S201 is generated needs to account for the biggish of display interface
Ratio.For example, when user gets the text of " my direct broadcasting room of Custom House Welcome to Custom House ", the font size of off screen subtitle is set at this time refering to Fig. 3
When being set to 200 pixel, the length of off screen subtitle picture is exactly equal to the length of display interface, if font size is greater than 200 pixels, that
The length of off screen subtitle picture will be more than the length of display interface.It can thus be assumed that the font size of off screen subtitle is 200 pixels
When, it is a sufficiently large font size for display interface, font size threshold value can be set by 200 pixels.
It should also be noted that, the text that user inputs in step S201, is inputted in the caption area of display interface
Text, electronic equipment according to user display interface caption area input text, in the caption area of display interface
Draw subtitle.In addition, electronic equipment also performs step S201, i.e., the text inputted according to user generates off screen subtitle figure
Piece.Wherein, the attributes such as font size, font, background of subtitle in the caption area of display interface can be artificially configured.And off screen
The attributes such as font size, background, the font of subtitle can also be taking human as being configured.The font size of off screen subtitle may be configured as being greater than or equal to
The value of font size threshold value, the attributes such as background, the font of off screen subtitle then can be set to the subtitle in the caption area with display interface
It is identical.
Optionally, in one specific embodiment of the application, off screen subtitle is drawn using vector graphics rendering algorithm.Tool
Body, according to the text that user inputs, off screen subtitle is drawn out using vector graphics rendering algorithm.Vector graphics rendering algorithm makes
Figure is described with straight line and curve, the element of these figures is some points, line, rectangle, polygon, circle and camber line etc., it
Be all by mathematical formulae calculate obtain.Off screen subtitle is drawn using vector graphics rendering algorithm, off screen subtitle can be made
Clarity is higher, and no matter amplifying, reduce or rotating etc. will not be distorted.It is calculated used by off screen subtitle it should be noted that drawing
Method includes but is not limited to content provided by the embodiments of the present application.
S202, by the size of the caption area of the size reduction of off screen subtitle picture to user's display interface adjusted,
Obtain final subtitle picture.
Since final subtitle picture is got by the diminution of off screen subtitle picture, the final subtitle that step S202 is obtained
Picture is also to exist only in memory, do not appear in picture on display interface.It should be noted that downscaled images refer to logarithm
The process that the size of word image is adjusted, its smoothness and clarity will be enhanced by reducing an image.Therefore work as off screen
When subtitle picture is contracted to the size of the caption area of user's display interface adjusted, obtained final subtitle picture it is clear
Degree will not reduce.
Specifically, refering to Fig. 4, user can pass through the first corner 401, the second corner of the subtitle frame of dragging display interface
402, any one angle in third corner 403 and the 4th corner 404, come adjust display interface caption area size.
Wherein, the subtitle frame of display interface is the word that electronic equipment real-time rendering goes out when user chooses the caption area of display interface
Curtain frame.When user completes to adjust the dragging of the caption area of display subtitle, when no longer choosing the caption area of display subtitle, word
Curtain frame can be not displayed on display interface.If can then be dragged by mouse applied in laptop, desktop computer
It drags.If then being pulled by touching screen applied in tablet computer, mobile phone.Distinct electronic apparatuses can be used different
Pulling mode is operated.It should be noted that after user pulls the caption area of display interface adjusted length and width
Than be it is constant, only can zoom in or out according to a certain percentage.Optionally, user pulled the first corner 401 in Fig. 4,
In second corner 402, third corner 403 and the 4th corner 404 behind any one corner, it is adjusted can also to pull mobile subscriber
The caption area of display interface is located at the position of display interface, by the caption area of user's display interface adjusted adjust to
Family desired position.
It should also be noted that, the attribute of the caption area of the display interface before user's adjustment is artificially to be configured
's.Wherein, the attribute of the caption area of display interface include the initial font size of subtitle in the caption area of display interface size,
Background picture, font, length-width ratio of caption area of display interface etc..The initial font size of subtitle in the caption area of display interface
Size and the relationship of size of caption area of display interface with off screen subtitle be identical.The font size of off screen subtitle is bigger,
The size of off screen subtitle is also bigger.Likewise, the initial font size setting of subtitle in the caption area of display interface is bigger, that
The size of the caption area of display interface is also bigger.
Since the font size of the off screen subtitle in step S201 is the resolution setting according to display interface and is not less than font size
The value of threshold value, therefore the font size of off screen subtitle is a sufficiently large font size for display interface, therefore regardless of user
The caption area of display interface is carried out pulling amplification or pull the operation of diminution, the caption area of display interface
Size is not more than the size of off screen subtitle picture always.Therefore, when executing step S202, by the size adjusting of off screen subtitle picture
It is the operation reduced to off screen subtitle picture for the size of the caption area of user's display interface adjusted.
Optionally, refering to Fig. 5, in one specific embodiment of the application, a kind of embodiment of step S202, packet are executed
It includes:
S501, according to the size of the caption area of user's display interface adjusted and the size of off screen subtitle picture,
Picture scaling is calculated.
Specifically, electronic equipment by respectively obtain user's display interface adjusted caption area size and from
The size for shielding subtitle picture, by the size of the caption area of user's display interface adjusted and the size of off screen subtitle picture
The size of ratio or off screen subtitle picture and the ratio of the size of the caption area of user's display interface adjusted are determined as
Picture scaling.It should be noted that obtain user's display interface adjusted caption area size and obtain from
The sequencing for shielding the size of subtitle picture does not influence the realization of the embodiment of the present application.
Optionally, in one specific embodiment of the application, the size of the caption area of user's display interface adjusted
Calculation, comprising:
The distance that drag operation and movement are executed according to user, calculates the caption area of user's display interface adjusted
Size.
Wherein, the drag operation of user is used to adjust the size of the caption area of display interface.
Refering to Fig. 4, when user pulls the position of 401 to the 5th corner 405 of the first corner, the caption area of display interface
Dragged amplification.Pass through the distance between the first corner 401 and the 5th corner 405 and the first corner 401, the second corner
402, the size for the caption area that third corner 403 and the 4th corner 404 determine, can calculate display interface adjusted
Caption area size.Specifically, it can be counted by the coordinate value of the first corner 401 and the coordinate value of the 5th corner 405
Calculate the first corner 401 between the 5th corner 405 at a distance from, and then calculate the caption area of user's display interface adjusted
Size.It should be noted that there are many mode for calculating the size of the caption area of user's display interface adjusted, including
But it is not limited only to the scheme of above-described embodiment proposition.
S502, according to picture scaling, by the size reduction of off screen subtitle picture to user's display interface adjusted
Caption area size, obtain final subtitle picture.
When executing step S502, the picture scaling that off screen subtitle picture is obtained according to step S501 is reduced, will
The size adjusting of off screen subtitle picture is the size of the caption area of user's display interface adjusted.
Specifically, executing a kind of embodiment of step S502 in one specific embodiment of the application, comprising:
It, will be after the size reduction of off screen subtitle picture to user's adjustment using Image Zooming Algorithm according to picture scaling
Display interface caption area size, obtain final subtitle picture.
Wherein, Image Zooming Algorithm includes bilinear interpolation algorithm, nearest neighbor algorithm, bicubic interpolation algorithm etc..Image
The principle of scaling is that the pixel value of target image is calculated by picture scaling according to the pixel value of original image.It needs
Illustrate, it, can be with other than it can be zoomed in and out according to picture scaling using Image Zooming Algorithm in practical application
It is calculated using other rule and picture is zoomed in and out.
S203, final subtitle picture is shown in the caption area of user's display interface adjusted.
When executing step S203, the final subtitle picture being present in memory that step S202 is obtained is shown in user's tune
The caption area of display interface after whole.Although final subtitle picture is got by the diminution of off screen subtitle picture, final
The size of subtitle picture with the size of the caption area of user's display interface adjusted be it is equal, therefore, user is showing
The effect seen on interface are as follows: when user pulls the size of the caption area of amplification display interface, the caption area of display interface
In subtitle with the becoming large-sized for caption area of display interface and equal proportion becomes larger, and user pulls and reduces display interface
When the size of caption area, subtitle in the caption area of display interface become smaller with the size of the caption area of display interface and
Equal proportion becomes smaller, though the size of the font size of i.e. subtitle can the drag operation of user occur adaptable change, user can according to from
The demand of body adjusts the size of the subtitle of display interface to the size needed for oneself by pulling.Also, it is different from existing skill
Operation directly is zoomed in and out to the subtitle picture of display interface in art, is presented in the caption area of display interface in the application
Final subtitle picture is to be got by the diminution of off screen subtitle picture, therefore user either contracts the caption area of display interface
Small or amplification, the subtitle clarity on display interface will not all reduce.
In addition, change the method for size of caption by the way that font size size is directly arranged compared to existing another kind, this Shen
Please the size of caption adjustment process in embodiment on display interface seem more intuitive.Also, the word of existing setting subtitle
Number selection be limited, be divided into limited multiple grades, such as No. 16 words, No. 18 words, No. 20 words etc..But the embodiment of the present application
The subtitle of middle display interface can be adjusted to arbitrary size according to the drag operation of user, and the process for pulling amplification does not have font size etc.
The limitation of grade.
In method for generating captions provided by the present application, according to the text that user inputs, off screen subtitle picture is generated.Wherein,
Off screen subtitle picture is the subtitle picture for being stored in memory and not appearing on display interface；The font size foundation of off screen subtitle
The font size of the resolution setting of display interface and off screen subtitle is not less than font size threshold value.By the size reduction of off screen subtitle picture
To the size of the caption area of user's display interface adjusted, final subtitle picture is obtained；And final subtitle picture is shown
In the caption area of user's display interface adjusted.When reducing due to subtitle picture, the clarity of subtitle will not be reduced.And
The font size of off screen subtitle is according to the resolution setting of display interface in the application and the font size of off screen subtitle is not less than font size threshold
Value, therefore when the size for the caption area that off screen subtitle picture is contracted to current display interface, the clarity of off screen subtitle is not
It can reduce.It solves in the prior art, when increasing the size of the caption area of display interface due to user, leads to subtitle clarity
The problem of decline.
Based on method for generating captions disclosed in above-mentioned the embodiment of the present application, the embodiment of the present application also correspondence discloses a kind of word
Curtain generating means, refering to Fig. 6, the caption generation device 600 specifically include that generation unit 601, the first reducing unit 602 and
Display unit 603.
Generation unit 601, the text for being inputted according to user generate off screen subtitle picture.Wherein, off screen subtitle picture
To be stored in memory and not appearing in the subtitle picture on display interface；Point of the font size of off screen subtitle according to display interface
The font size of resolution setting and off screen subtitle is not less than font size threshold value.
Optionally, in one specific embodiment of the application, off screen subtitle is drawn using vector graphics rendering algorithm.
First reducing unit 602, for by the size reduction of off screen subtitle picture to user's display interface adjusted
The size of caption area obtains final subtitle picture.
Optionally, in one specific embodiment of the application, the first reducing unit 602, comprising: the second computing unit and second
Reducing unit.
Second computing unit, for the size and off screen subtitle according to the caption area of user's display interface adjusted
Picture scaling is calculated in the size of picture.
Second reducing unit, for according to picture scaling, the size reduction of off screen subtitle picture to user to be adjusted
The size of the caption area of display interface afterwards obtains final subtitle picture.
Optionally, in one specific embodiment of the application, the second reducing unit, comprising:
Second reduces subelement, for according to picture scaling, using Image Zooming Algorithm by off screen subtitle picture
Size reduction to user's display interface adjusted caption area size, obtain final subtitle picture.
Display unit 603, for showing final subtitle picture in user's caption area adjusted.
Optionally, in one specific embodiment of the application, caption generation device 600 further include:
It is adjusted to calculate user for executing the distance of drag operation and movement according to user for first computing unit
The size of the caption area of display interface, wherein the drag operation of user is used to adjust the size of the caption area of display interface.
It the specific principle of each unit and subelement in caption generation device disclosed in the embodiments of the present invention and holds
Row process, it is identical as method for generating captions disclosed in the embodiments of the present invention, reference can be made to disclosed in the embodiments of the present invention
Corresponding part, is not discussed here in method for generating captions.
In caption generation device 600 provided by the present application, the text that generation unit 601 is inputted according to user generates off screen
Subtitle picture.Wherein, off screen subtitle picture is the subtitle picture for being stored in memory and not appearing on display interface；Off screen
The font size of subtitle is according to the resolution setting of display interface and the font size of off screen subtitle is not less than font size threshold value.First reduces list
Member 602 obtains the size of the caption area of the size reduction of off screen subtitle picture to user's display interface adjusted final
Subtitle picture.Display unit 603 shows final subtitle picture in the caption area of user's display interface adjusted.Due to
When subtitle picture reduces, the clarity of subtitle will not be reduced.And point of the font size of off screen subtitle according to display interface in the application
The font size of resolution setting and off screen subtitle is not less than font size threshold value, therefore the first reducing unit 602 reduces off screen subtitle picture
To the caption area of current display interface size when, the clarity of off screen subtitle will not reduce.Solve in the prior art, by
In user increase display interface caption area size when, cause subtitle clarity decline the problem of.
Professional technician can be realized or using the present invention.Profession of the various modifications to these embodiments to this field
It will be apparent for technical staff, the general principles defined herein can not depart from spirit or model of the invention
In the case where enclosing, realize in other embodiments.Therefore, the present invention will not be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with the principles and novel features disclosed herein.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Claims (10)
1. a kind of method for generating captions characterized by comprising
According to the text that user inputs, off screen subtitle picture is generated；Wherein, the off screen subtitle picture be stored in memory,
And the subtitle picture on display interface is not appeared in；The font size of the off screen subtitle according to display interface resolution setting and
The font size of the off screen subtitle is not less than font size threshold value；
By the size of the caption area of the size reduction of the off screen subtitle picture to user's display interface adjusted, obtain most
Whole subtitle picture；
The final subtitle picture is shown in the caption area of user display interface adjusted.
2. the method according to claim 1, wherein the caption area of user display interface adjusted
The calculation of size, comprising:
The distance that drag operation and movement are executed according to user, calculates the caption area of user display interface adjusted
Size, wherein the drag operation of the user be used for adjust the display interface caption area size.
3. the method according to claim 1, wherein the size reduction by the off screen subtitle picture is extremely used
The size of the caption area of family display interface adjusted obtains final subtitle picture, comprising:
According to the size of the caption area of user display interface adjusted and the size of the off screen subtitle picture, meter
Calculation obtains picture scaling；
According to the picture scaling, by the size reduction of the off screen subtitle picture to user display circle adjusted
The size of the caption area in face obtains the final subtitle picture.
4. according to the method described in claim 3, it is characterized in that, described according to the picture scaling, by the off screen
The size reduction of subtitle picture to user display interface adjusted caption area size, obtain the final subtitle
Picture, comprising:
According to the picture scaling, using Image Zooming Algorithm by the size reduction of the off screen subtitle picture to the use
The size of the caption area of family display interface adjusted obtains the final subtitle picture.
5. method as claimed in any of claims 1 to 4, which is characterized in that the off screen subtitle uses polar plot
Shape rendering algorithm is drawn.
6. a kind of caption generation device characterized by comprising
Generation unit, the text for being inputted according to user generate off screen subtitle picture；Wherein, the off screen subtitle picture is
It is stored in memory and does not appear in the subtitle picture on display interface；The font size of the off screen subtitle is according to display interface
The font size of resolution setting and the off screen subtitle is not less than font size threshold value；
First reducing unit, for by the subtitle of the size reduction of the off screen subtitle picture to user's display interface adjusted
The size in region obtains final subtitle picture；
Display unit, for showing the final subtitle picture in user caption area adjusted.
7. device according to claim 6, which is characterized in that further include:
It is adjusted to calculate the user for executing the distance of drag operation and movement according to user for first computing unit
The size of the caption area of display interface, wherein the drag operation of the user is used to adjust the subtitle region of the display interface
The size in domain.
8. device according to claim 6, which is characterized in that first reducing unit, comprising:
Second computing unit, for the size and the off screen according to the caption area of user display interface adjusted
Picture scaling is calculated in the size of subtitle picture；
Second reducing unit, for according to the picture scaling, by the size reduction of the off screen subtitle picture to described
The size of the caption area of user's display interface adjusted obtains the final subtitle picture.
9. device according to claim 8, which is characterized in that second reducing unit, comprising:
Second reduces subelement, for according to the picture scaling, using Image Zooming Algorithm by the off screen subtitle figure
The size reduction of piece to user display interface adjusted caption area size, obtain the final subtitle picture.
10. device according to any one of claims 6 to 9, which is characterized in that the off screen subtitle uses polar plot
Shape rendering algorithm is drawn.
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