CN101998043A - White balance setting and starting method of image capture device - Google Patents
White balance setting and starting method of image capture device Download PDFInfo
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- CN101998043A CN101998043A CN2009101692723A CN200910169272A CN101998043A CN 101998043 A CN101998043 A CN 101998043A CN 2009101692723 A CN2009101692723 A CN 2009101692723A CN 200910169272 A CN200910169272 A CN 200910169272A CN 101998043 A CN101998043 A CN 101998043A
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Abstract
The invention relates to a white balance setting and starting method of an image capture device. In the invention, under the function of a customized white balance of the image capture device, a single trigger action is also set in a local environment, and white balance information generated while turning on a flashlight and turning down the flashlight is stored to a database, and thus, when the image capture device is used for capturing images, the image capture device can automatically judge whether the flashlight is turned on or not, and start use corresponding white balance information to carry out color temperature adjustment of the images, so that a user does not need to repeatedly set the white balance information due to the on-off of the flashlight during image capturing.
Description
Technical field
The present invention is relevant for white balance, especially more relevant for the white balance establishing method of image capture unit.
Background technology
Since the camera invention, but, must think that the user writes the record in each period because of its filmed image data, therefore being subjected to very much market payes attention to, and, even after developing into the digital camera in later stage, more become the indispensable daily necessities of general masses from its a large amount of productions.
Along with the universalness of camera, not only user's age level spreads all over, and the scope of application is expansion rapidly also.No matter on the mountain or seashore, indoor or outdoors, or even under the sun with dark place in, all have the user and use camera to carry out the acquisition of image.All can carry out the acquisition of image smoothly for making under any environment, each manufacturer injects capital into one after another, the white balance function of developmental research camera.
White balance is meant the cognition of camera for white.The color that projection light is penetrated around the color Chang Yin that object reflects is different and change to some extent, and camera can't be revised this change by anthropoid eyes equally automatically.Therefore, need by set white balance allow camera know under the environment of place reference white why after, this camera just can be complied with the reference white of being assert, calculates different illumination mean value.This camera and then the automatic color balance of adjusting inside make this phase function present the color effects that it is assert truly in this place environment.
For convenience's sake, the camera of the overwhelming majority is before dispatching from the factory at present, all can preestablish the white balance information under many environment, for example cloudy (Cloudy), dark (Shade), daylight (Daylight), tungsten lamp (Tungsten), fluorescence (Fluorescent) and Automatic white balance (Auto White Balance, AWB) etc., directly select for use for the user.The user only needs select corresponding white balance mode under the environment of place, can take the photo near standard color under the environment of place.
Only, the white balance information that camera is built-in only is reference and convenient usefulness, and for user who has relatively high expectations or professional photographer, those preset white balance actual effects fruits are little.Because of above-mentioned various situations still can be because of different time and condition, and have different color effects and aberration to change, the white balance information that exhausted non-original factory is set can easily satisfy.Therefore, under those situations, the user can use from ordering pattern and set.
The above-mentioned pattern of ordering certainly, the simplest method, promptly under the environment of place, camera is aimed at a white paper card to be taken, after by this camera white image capture being come out, make this camera know that the reference white under this place environment looks like, allow this camera do automatic colour temperature adjustment again.Thus, use this white image that captures to set white balance, and under this place environment, carry out image capture, can obtain under this place environment, comparatively the colors of image of standard.
But the above-mentioned white balance method of ordering certainly has a great shortcoming in fact.Certainly the white balance of ordering of current camera only has only a kind of pattern.For example, when this camera divides into the ding white ware balance in the situation of cutting out photoflash lamp, then when this camera is opened the photoflash lamp pick-up image, can improve the brightness of place environment in fact because of photoflash lamp, make white balance suffer the influence of the higher relatively colour temperature of photoflash lamp, make overall image lose contact with reality colour temperature and be partial to blueness (the high colder colour system of colour temperature, the low inclined to one side warm colour of colour temperature system), at this moment, this order white balance certainly will be no longer suitable under this situation.Therefore, when the user closes photoflash lamp from ordering a white balance, when the photoflash lamp of desire unlatching is thereafter done image capture, promptly need reset the white balance that a corresponding photoflash lamp is opened.Otherwise,,, also need reset the white balance that a corresponding photoflash lamp cuts out if desiring to close photoflash lamp carries out image capture when the user opens photoflash lamp after ordering white balance.A past action powerful position lacks tool efficient and convenience thus, causes the sizable puzzlement of user.
Summary of the invention
A purpose of the present invention, be to provide a kind of white balance establishing method of image capture unit, can be set in simultaneously under the environment of same place by singly-bound, white balance data when opening photoflash lamp and closing photoflash lamp make the white balance data that have simultaneously in user's the image capture unit when opening and closing corresponding to photoflash lamp.
For reaching above-mentioned purpose, the invention provides a kind of white balance establishing method of image capture unit, the white balance data in the time of can setting a strobe light unit in this image capture unit simultaneously and open and close comprise:
A) trigger the white balance set-up function of this image capture unit;
B) set one first white balance data;
C) switch the on off state of this strobe light unit;
D) set one second white balance data;
E) store these first white balance data and this second white balance data.
Wherein, among the step a, the white balance set-up function of this image capture unit is that the shutter unit on this image capture unit triggers when being pressed.
Wherein, the first white balance data of this among the step b are the white balance data when opening for this strobe light unit, and these the second white balance data in the steps d are the white balance data when closing for this strobe light unit.
Wherein, the first white balance data of this among the step b are the white balance data when closing for this strobe light unit, and these the second white balance data in the steps d are the white balance data when opening for this strobe light unit.
Wherein, also comprise the following steps:
F) judge whether these two white balances data can be used;
F1) if these two white balances data can not be used, send a warning notice;
F2) judge whether to reset this two white balances data, if repeated execution of steps b is to steps d.
Another object of the present invention is to provide a kind of white balance of image capture unit to enable method, can be when pick-up image, judge the switch of photoflash lamp, and the white balance data when choosing corresponding photoflash lamp switch automatically, carry out the colour temperature adjustment of image.
For reaching above-mentioned purpose, the white balance that the invention provides a kind of image capture unit is enabled method, can judge the on off state of the strobe light unit on this image capture unit, and enable corresponding one first white balance data or one second white balance data, wherein these two white balances data are to set in the white balance establishing method of above-mentioned image capture unit, comprising:
A) trigger the image acquisition function of this image capture unit;
B) judge the on off state of this strobe light unit;
C), enable corresponding these first white balance data or this second white balance data according to the on off state of this strobe light unit;
D) pick-up image.
Wherein, the image acquisition function of step a is that a shutter unit on this image capture unit triggers when being pressed.
Wherein, among the step c, be when this strobe light unit is opened, to enable this first white balance data, and when this strobe light unit is closed, enable these second white balance data.
Wherein, among the step c, be when this strobe light unit is closed, to enable this first white balance data, and when this strobe light unit is opened, enable this second white balance data.
Effect of the present invention is, can in image capture unit, set and be stored under the environment of single place simultaneously, white balance data when photoflash lamp opens and closes, make the user when image capture, do not need to reset the white balance data because of the switching use of photoflash lamp, the time waste that causes image capture, and then can't mend to grasp and desire the picked image picture.Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
The calcspar of Fig. 1 image capture unit;
The stereogram of Fig. 2 image capture unit;
The setting process figure of Fig. 3 preferred embodiment of the present invention;
The setting process figure of Fig. 4 another preferred embodiment of the present invention;
Fig. 5 preferred embodiment of the present invention enable flow chart.
Wherein, Reference numeral
1 ... image capture unit 101 ... lens unit
102 ... photosensitive unit 103 ... processing unit
104 ... storage element 105 ... strobe light unit
106 ... display unit 107 ... shutter unit
2 ... object
S300～S308, S304a～S304e, S400～S412, S500～S508 ... step
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:
Head sees also Fig. 1 and Fig. 2, is the calcspar and the stereogram of image capture unit.When user's desire is used an image capture unit, for example a digital camera 1 carries out before the image capture, can select whether to open the light intensity that a strobe light unit 105 increases image earlier.
When carrying out image capture, this user triggers the shutter unit 107 on this camera 1 earlier, and then this camera 1 receives the light energy signal of an object 2 reflections, after the refraction via a lens unit 101, images in the photosensitive unit 102.This photosensitive unit 102 is converted to an electrical signal with this light energy signal of gained, and is passed to a processing unit 103 after this electric signal handled via analog-digital converter (not icon).This processing unit 103 is sent to storage in the storage element 104 with a digital image data of correspondence at last, and is shown on a display unit 106, makes this user be watched the digital image data of this object 2 that is captured.Only, the above only is a preferred embodiments of the present invention, and wherein this image capture unit also can be the person that has the said function such as mobile computer that mobile phone or that a digital camera, has camera has camera, can not be exceeded.
Continuous see also Fig. 3, be the setting process figure of a preferred embodiment of the present invention.As shown in the figure, at first, provide the reference white (a for example white paper card) under the environment of place to give this camera 1 (step S300).Then, push this shutter unit 107 on this camera 1, trigger the white balance set-up function (step S302) of this camera 1.White image on this camera 1 this white paper card of acquisition so as to execution in step S304, is obtained this camera 1 under this place environment, the white balance data when this strobe light unit 105 opens and closes simultaneously.
This step S304 is made of jointly S304a, S304c and three steps of S304e.At first, comply with this reference white that is captured and set one first white balance data (step S304a), then switch these strobe light unit 105 states (step S304c) on this camera 1 after, set one second white balance data (step S304e) again.For example, when this strobe light unit 105 of this camera 1 is unlatching, carry out this step S304a earlier, set this camera 1 under this place environment according to this reference white, the white balance data when opening this strobe light unit 105 are as these first white balance data.Then carry out this step S304c, switch the state of this strobe light unit 105, be about to this strobe light unit 105 and transfer to by unlatching and closing.At last, carry out this step S304e again, set this camera 1 under this place environment, the white balance data when closing this strobe light unit 105, i.e. these second white balance data according to this reference white.Thus, after this step S304 is finished, promptly obtain this camera 1 simultaneously under this place environment, the white balance data when opening this strobe light unit 105 and closing this strobe light unit 105.So this only is a preferred embodiments of the present invention, and wherein these first and second white balance data are only named for convenience of description, and the also conversion arbitrarily of the setting of these two white balances data order should not be used to the present invention is limited.
After above-mentioned steps finished, this processing unit 103 in this camera 1 judged whether these obtained two white balances data can use (step S306).If these two white balances data are because of when acquisition, factor such as distance between this strobe light unit 105 and this white paper card or angle are not good and overexposure; Or can't distinguish that too secretly situations such as looking this reference white takes place because of this place environment, and then when these two white balances data can't be recognized by this camera 1, this camera 1 was got back to this step S304, captures this two white balances data automatically again.And if this processing unit 103 is judged when these two obtained white balance data can be used among this step S306, it is the storage action of execution in step S308, these two white balances data with obtained are stored in this storage element 104, make this camera 1 use when carrying out image capture.
Fig. 4 is the setting process figure of another preferred embodiment of the present invention.At first carry out step S400, this reference white under this place environment of this camera 1 (for example should white paper card) is provided.Then, push this shutter unit 107 on this camera 1, trigger the white balance set-up function (step S402) of this camera 1.Make this camera 1 that white image on this white paper card that is provided in step S400 is provided, so as to carrying out step S404, the white balance data when obtaining this strobe light unit 105 in this camera 1 simultaneously and opening and closing.
After obtaining these two white balances data, this processing unit 103 in this camera 1 judges whether these two white balances data can use (step S406).If can, then directly carry out step S408, with this two white balances data storing to this storage element 104.And if this processing unit 103 judge when these two white balances data can not be used, promptly send a warning notice (step S410), inform that these obtained two white balances data of this user can not use, and inquire whether this user will obtain white balance data (step S412) again.If the user desires to obtain the white balance data again, then get back to step S404, obtain the white balance data again.Otherwise, then finish the setting of white balance data.
Above-mentioned Fig. 3 and Fig. 4 are two setting process figure of the present invention, then see also Fig. 5, are the flow chart of enabling of a preferred embodiment of the present invention.Under the feature operation of image capture, when the user pushes this shutter unit 107 on this camera 1, when triggering the image acquisition function (step S500) of this camera 1, this processing unit 103 in this camera 1 judges whether this strobe light unit 105 opens (step S502).If open, i.e. execution in step S504 reads the white balance data when should photoflash lamp opening, that is, obtained and be stored to these first white balance data in this storage element 104 in above-mentioned setting step.At last, again according to these first white balance data to doing the colour temperature adjustment this camera 1 place environment under, and (step S508) moved in the acquisition of carrying out image.And if in this step S502, judge this strobe light unit 105 for closing, and execution in step S506 then reads the white balance data when should strobe light unit 105 closing, i.e. this second white balance data, and then the image capture of execution in step S508 moves again.
White balance data when these first white balance data can be opened as this strobe light unit 105; And the white balance data of these second white balance data can close as this strobe light unit 105 time, and can by this processing unit 103 when the image capture, judge the switch of this strobe light unit 105 automatically.Thus, when the user used this camera 1 to carry out image capture, no matter this strobe light unit 105 was to open, close, or is set at (Auto) pattern automatically, and this camera 1 all can be chosen corresponding white balance data automatically.Cause, no matter under which kind of situation, all can be successfully and automatically adjust the colour temperature of image, make the image that the captures standard color under can convergence place environment.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the white balance establishing method of an image capture unit, the white balance data in the time of can setting a strobe light unit in this image capture unit simultaneously and open and close is characterized in that, comprising:
A) trigger the white balance set-up function of this image capture unit;
B) set one first white balance data;
C) switch the on off state of this strobe light unit;
D) set one second white balance data;
E) store these first white balance data and this second white balance data.
2. the white balance establishing method of image capture unit according to claim 1 is characterized in that, among the step a, the white balance set-up function of this image capture unit is that the shutter unit on this image capture unit triggers when being pressed.
3. the white balance establishing method of image capture unit according to claim 1, it is characterized in that, among the step b this first white balance data are the white balance data when opening for this strobe light unit, and these the second white balance data in the steps d are the white balance data when closing for this strobe light unit.
4. the white balance establishing method of image capture unit according to claim 1, it is characterized in that, among the step b this first white balance data are the white balance data when closing for this strobe light unit, and these the second white balance data in the steps d are the white balance data when opening for this strobe light unit.
5. the white balance establishing method of image capture unit according to claim 1 is characterized in that, also comprises a step:
F) judge whether these two white balances data can be used.
6. the white balance establishing method of image capture unit according to claim 5 is characterized in that, also comprises a step behind the step f:
F1) if these two white balances data can not be used, send a warning notice.
7. the white balance establishing method of image capture unit according to claim 6 is characterized in that, also comprises a step behind the step f1:
F2) judge whether to reset this two white balances data, if repeated execution of steps b is to steps d.
8. the white balance of an image capture unit is enabled method, can judge the on off state of the strobe light unit on this image capture unit, and enable corresponding one first white balance data or one second white balance data, wherein set in the white balance establishing method that these two white balances data are the described image capture unit of claim 1, it is characterized in that, comprising:
A) trigger the image acquisition function of this image capture unit;
B) judge the on off state of this strobe light unit;
C), enable corresponding these first white balance data or this second white balance data according to the on off state of this strobe light unit;
D) pick-up image.
9. the white balance of image capture unit according to claim 8 is enabled method, it is characterized in that the image acquisition function of step a is that a shutter unit on this image capture unit triggers when being pressed.
10. the white balance of image capture unit according to claim 8 is enabled method, it is characterized in that, among the step c, be when this strobe light unit is opened, to enable this first white balance data, and when closing, this strobe light unit enables these second white balance data, or when this strobe light unit is closed, enable these first white balance data, and when this strobe light unit is opened, enable this second white balance data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101692723A CN101998043A (en) | 2009-08-25 | 2009-08-25 | White balance setting and starting method of image capture device |
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| CN2009101692723A CN101998043A (en) | 2009-08-25 | 2009-08-25 | White balance setting and starting method of image capture device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769760A (en) * | 2011-05-02 | 2012-11-07 | 佳能株式会社 | Image processing apparatus and image processing method |
| CN105981379A (en) * | 2014-09-17 | 2016-09-28 | 深圳市大疆创新科技有限公司 | Automatic white balancing system and method |
-
2009
- 2009-08-25 CN CN2009101692723A patent/CN101998043A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769760A (en) * | 2011-05-02 | 2012-11-07 | 佳能株式会社 | Image processing apparatus and image processing method |
| US9036045B2 (en) | 2011-05-02 | 2015-05-19 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
| CN102769760B (en) * | 2011-05-02 | 2015-07-22 | 佳能株式会社 | Image processing apparatus and image processing method |
| CN105981379A (en) * | 2014-09-17 | 2016-09-28 | 深圳市大疆创新科技有限公司 | Automatic white balancing system and method |
| CN105981379B (en) * | 2014-09-17 | 2018-09-25 | 深圳市大疆创新科技有限公司 | Auto white balance system and method |
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Application publication date: 20110330 |