CN103618855A - Photographing method and device for automatically selecting optimal image - Google Patents
Photographing method and device for automatically selecting optimal image Download PDFInfo
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- CN103618855A CN103618855A CN201310641394.4A CN201310641394A CN103618855A CN 103618855 A CN103618855 A CN 103618855A CN 201310641394 A CN201310641394 A CN 201310641394A CN 103618855 A CN103618855 A CN 103618855A
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Abstract
The invention discloses a photographing method and device for automatically selecting the optimal image. In the time of data preview, preview images are continuously output and the newly-output N preview images are continuously stored and updated at N cache zones which are developed in advance. Finally, in the time of photographing, the optimal image selection algorithm is used for choosing the optimal image from the N preview images and outputting the optimal image as a result image. Thus, the photographing success rate is improved.
Description
Technical field
The present invention relates to a kind of photographic method and device, particularly a kind of photographic method and the device that can automatically select optimum picture.
Background technology
Current hand-held photographing device, when pressing shutter and take pictures, user because the effect of power more or less all can cause that the movement of machine produces the variations such as float, photo angle or whole photometry and makes to export picture Scene to present destroyed photographic effect natural not while causing taking pictures, greatly reduces the success rate of taking pictures.
Summary of the invention
The present invention is for addressing the above problem, photographic method and the device of the optimum picture of a kind of automatic selection are provided, when it is taken pictures by retaining in advance with the multiple pictures of a scene and therefrom intelligence choose optimum photo as the output of taking pictures, thereby the success rate that as much as possible raising is taken pictures.
For achieving the above object, the invention provides the photographic method of the optimum picture of a kind of automatic selection, it is characterized in that, comprise the following steps:
A. start photographing module and carry out data preview, during preview, continuously exporting preview picture;
B. open up in advance N buffering area, the up-to-date N that constantly preserves photographing module output opens preview picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area in the time will taking pictures opens and preview picture, selects the as a result of picture output of an optimum picture.
As a kind of preferred embodiment, described photographing module is the independently combination of camera module or camera module and image processor.
As a kind of preferred embodiment, the preview picture in described steps A is of a size of arbitrary dimension.
As a kind of preferred embodiment, when described in described step C, the Output Size of result picture need to be greater than or less than preview graph chip size, can carry out by the image zooming instrument of hardware or software the preview picture of convergent-divergent photographing module output, to obtain required result picture.
As a kind of preferred embodiment, the buffer size in described step B is to set according to the preview graph chip size of photographing module output.
As a kind of preferred embodiment, if change the preview graph chip size size that photographing module is exported when preview, again open up the address of described buffering area with big or small big or small to adapt to described preview graph chip size, and after opening up and before next change preview picture size, the address of this buffering area is all fixed with size.
As a kind of preferred embodiment, the buffering area quantity N in described step B presets, and can adjust according to specific needs.
As a kind of preferred embodiment, the optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between preview picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
As a kind of preferred embodiment, the form of described result picture can be different from the preview picture format of photographing module output, and its picture format transducer by hardware or software converts required result picture format to.
In addition, the present invention also provides the camera arrangement of the optimum picture of a kind of automatic selection, it is characterized in that, it comprises:
Image unit, for carrying out the preview picture of data preview successive output required size;
Picture-storage unit, it is opened up in advance N buffering area and opens preview picture with the up-to-date N depositing and upgrade image unit output;
Optimum picture judging unit, opens and preview picture, selects an optimum picture for the N depositing from picture-storage unit;
The unit of taking pictures, for when starting while taking pictures the as a result of picture output of described optimum picture.
As a kind of preferred embodiment, described image unit is the independently combination of camera module or camera module and image processor.
As a kind of preferred embodiment, described camera arrangement also comprises a master chip, and described picture-storage unit is located in image processor or in master chip.
As a kind of preferred embodiment, described camera arrangement also comprises a master chip, and described optimum picture judging unit is for computing chip independently or be located in master chip.
The invention has the beneficial effects as follows:
(1) photographic method and the device of the optimum picture of a kind of automatic selection of the present invention, it continuously exports preview picture when data preview, and the N of up-to-date output is opened to preview picture and constantly preserve and be updated in N the buffering area of opening up in advance, finally when taking pictures, utilize optimum picture selection algorithm to open and preview picture, select the as a result of picture output of an optimum picture from described N, thereby improve the success rate of taking pictures;
(2) described buffer size is to set according to the preview graph chip size of photographing module output, and when preview graph chip size changes, the address of buffering area and size also change thereupon, thereby memory headroom is utilized effectively;
(3) size of described result picture or form can be different from size or the form of preview picture, and it changes into required result picture by image zooming instrument or picture format transducer, and versatility is stronger.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the general flow chart of the photographic method of the optimum picture of a kind of automatic selection of the present invention;
Fig. 2 is the schematic diagram of the camera arrangement of the optimum picture of a kind of automatic selection of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the photographic method of the optimum picture of a kind of automatic selection of the present invention, comprises the following steps:
A. start photographing module and carry out data preview, during preview, continuously exporting preview picture;
B. open up in advance N buffering area, the up-to-date N that constantly preserves photographing module output opens preview picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area in the time will taking pictures opens and preview picture, selects the as a result of picture output of an optimum picture.
Wherein, described photographing module is the independently combination of camera module or camera module and image processor; Buffering area in described step B is to open up in advance before the preview picture that receives photographing module output, and its quantity N presets, and can adjust according to specific needs.
And the preview picture in described steps A is of a size of arbitrary dimension; When described in described step C, the Output Size of result picture need to be greater than or less than preview graph chip size, when needing the smaller or greater size of specific output dimension of picture to be presented on interface, can carry out by the image zooming instrument of hardware or software the preview picture of convergent-divergent photographing module output, to obtain required result picture, and image zooming instrument does not affect the size of the described preview picture of preserving in buffering area; Buffer size in described step B is to set according to the preview graph chip size of photographing module output; If change the preview graph chip size size that photographing module is exported when preview, address and the size of again opening up described buffering area are big or small to adapt to described preview graph chip size, and after open up and change address and the size of this buffering area before preview picture size next time and all fix, unless described buffering area changes after opening up during address during whole shooting and size are the shooting of fixing, preview size is opened up once again; And the form of described result picture can be different from the preview picture format of photographing module output, when needs are presented on interface to be different from output picture format, its picture format transducer by hardware or software converts required result picture format to, and picture format transducer does not affect the form of the preview picture in buffering area.
Optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between preview picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
Concrete application below in conjunction with smart mobile phone is described in detail implementation method of the present invention:
A. start photographing module and carry out data preview, during preview, continuously exporting preview picture:
Click the camera apk of smart mobile phone, the picture of the yv12 form that its displayable picture is 960x720 size, sends the picture of exporting the yuy2 form of 2048x1536 size when order starts photographing module and informs photographing module preview by bottom layer driving; When AP end is received yuy2 picture, by hardware picture zoom tool, converting thereof into the picture that size is the yv12 of 960x720 shows to apk; If user has selected the picture of other size at apk end between preview period, by bottom layer driving, inform that photographing module changes to by preview Output Size the size that user selects.
B. open up in advance N buffering area, the up-to-date N that constantly preserves photographing module output opens preview picture:
Before bottom layer driving sends order and parameter startup photographing module, at mobile phone A P, hold the global buffer of the yuy2 picture of opening up 5 preservation 2048x1536 sizes and be labeled as 0 to 4 in advance; Be converted to yv12 form when bottom layer driving is received front 5 pictures that photographing module transmits before, first fill up successively label 0 to 4 these 5 buffering areas; It is 0 buffering area that the content of the buffering area that is first 1 by original label when biography is come next pictures first copies to label, then 2 copy 1 copy so successively, when the buffering area that label is 4 is copied to after label is 3 buffering area, the 6th pictures is filled out on 4 these buffering areas; With the method, constantly update up-to-date picture in these 5 buffering areas; When user selects other size, in bottom layer driving, inform before photographing module changes Output Size and first delete 5 original global buffers, then by new size, re-create 5 buffering areas, when camera is exported the picture of new size, carry out as stated above filling and the renewal of buffering area.
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area in the time will taking pictures opens and preview picture, selects the as a result of picture output of an optimum picture:
When user presses the shutter of camera apk, HAL layer intercept and capture the signal of apk and call optimum picture selection algorithm from 5 buffering areas of AP end, choose an optimum picture as a result of picture export to apk and preserve; Wherein, optimum picture selection algorithm is exemplified below:
A. obtain the brightness value of each pixel of preview picture in buffering area;
B. calculate the mean value of the brightness value of every preview picture.
C. select a mean value preview picture placed in the middle to export as optimum picture.
As shown in Figure 2, the camera arrangement of the optimum picture of a kind of automatic selection of the present invention, it comprises:
Image unit, for carrying out the preview picture of data preview successive output required size;
Picture-storage unit, it is opened up in advance N buffering area and opens preview picture with the up-to-date N depositing and upgrade image unit output;
Optimum picture judging unit, opens and preview picture, selects an optimum picture for the N depositing from picture-storage unit;
The unit of taking pictures, for when starting while taking pictures the as a result of picture output of described optimum picture.
Wherein, described image unit is the independently combination of camera module or camera module and image processor; Described camera arrangement also comprises a master chip, and described picture-storage unit is located in image processor or in master chip; Described optimum picture judging unit is for computing chip independently or be located in master chip.
Concrete application below in conjunction with aforementioned intelligent mobile phone is described in detail camera arrangement of the present invention:
In the present embodiment, the front camera and rear camera module that image unit is smart mobile phone, or the combination of front camera and rear camera module and image processor, for successively exporting the scene picture that needs size, it is connected with smart mobile phone AP end and controlled by AP end; Picture-storage unit is the internal memory of smart mobile phone AP end, for depositing and upgrade the some up-to-date picture of image unit output; Optimum picture judging unit is the cpu program of smart mobile phone AP end, for selecting optimum picture some pictures of depositing from picture-storage unit; The unit of taking pictures is camera apk and the HAL layer control routine of smart mobile phone, for when starting the optimum picture of output of taking pictures.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, as front, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in invention contemplated scope herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection range of claims of the present invention.
Claims (13)
1. automatically select a photographic method for optimum picture, it is characterized in that, comprise the following steps:
A. start photographing module and carry out data preview, during preview, continuously exporting preview picture;
B. open up in advance N buffering area, the up-to-date N that constantly preserves photographing module output opens preview picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area in the time will taking pictures opens and preview picture, selects the as a result of picture output of an optimum picture.
2. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, is characterized in that: described photographing module is the independently combination of camera module or camera module and image processor.
3. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, is characterized in that: the preview picture in described steps A is of a size of arbitrary dimension.
4. the photographic method of the optimum picture of a kind of automatic selection according to claim 3, the Output Size of result picture it is characterized in that: when described in described step C, need to be greater than or less than preview graph chip size, can carry out by the image zooming instrument of hardware or software the preview picture of convergent-divergent photographing module output, to obtain required result picture.
5. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, is characterized in that: the buffer size in described step B is to set according to the preview graph chip size of photographing module output.
6. the photographic method of the optimum picture of a kind of automatic selection according to claim 5, it is characterized in that: if change the preview graph chip size size that photographing module is exported when preview, again open up the address of described buffering area with big or small big or small to adapt to described preview graph chip size, and after opening up and before next change preview picture size, the address of this buffering area is all fixed with size.
7. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, is characterized in that: the buffering area quantity N in described step B presets, and can adjust according to specific needs.
8. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, is characterized in that: the optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between preview picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
9. the photographic method of the optimum picture of a kind of automatic selection according to claim 1, it is characterized in that: the form of described result picture can be different from the preview picture format of photographing module output, and its picture format transducer by hardware or software converts required result picture format to.
10. automatically select a camera arrangement for optimum picture, it is characterized in that, it comprises:
Image unit, for carrying out the preview picture of data preview successive output required size;
Picture-storage unit, it is opened up in advance N buffering area and opens preview picture with the up-to-date N depositing and upgrade image unit output;
Optimum picture judging unit, opens and preview picture, selects an optimum picture for the N depositing from picture-storage unit;
The unit of taking pictures, for when starting while taking pictures the as a result of picture output of described optimum picture.
The camera arrangement of the optimum picture of 11. a kind of automatic selection according to claim 10, is characterized in that: described image unit is the independently combination of camera module or camera module and image processor.
The camera arrangement of the optimum picture of 12. a kind of automatic selection according to claim 10, is characterized in that: described camera arrangement also comprises a master chip, described picture-storage unit is located in image processor or in master chip.
The camera arrangement of the optimum pictures of 13. a kind of automatic selection according to claim 10, is characterized in that: described camera arrangement also comprises a master chip, and described optimum picture judging unit is for computing chip independently or be located in master chip.
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| CN201310641394.4A CN103618855A (en) | 2013-12-03 | 2013-12-03 | Photographing method and device for automatically selecting optimal image |
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| CN103945121A (en) * | 2014-03-24 | 2014-07-23 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104580907A (en) * | 2014-12-31 | 2015-04-29 | 广东欧珀移动通信有限公司 | Anti-shake photographing method and device |
| CN104580908A (en) * | 2014-12-31 | 2015-04-29 | 惠州Tcl移动通信有限公司 | Snapshot method and mobile terminal |
| CN104618640A (en) * | 2014-12-30 | 2015-05-13 | 广东欧珀移动通信有限公司 | Photographing method and device |
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| CN105959557A (en) * | 2016-06-07 | 2016-09-21 | 深圳市万普拉斯科技有限公司 | Photographing method and device |
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| CN103945121A (en) * | 2014-03-24 | 2014-07-23 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104618640A (en) * | 2014-12-30 | 2015-05-13 | 广东欧珀移动通信有限公司 | Photographing method and device |
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| CN104657956A (en) * | 2015-03-16 | 2015-05-27 | 龙旗电子(惠州)有限公司 | Method for realizing smart phone picture beautifying function |
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| CN105049728A (en) * | 2015-08-17 | 2015-11-11 | 广东欧珀移动通信有限公司 | Method and device for acquiring shot image |
| CN105208375A (en) * | 2015-08-27 | 2015-12-30 | 广东欧珀移动通信有限公司 | Verification method and apparatus of image selecting algorithm |
| CN105391942A (en) * | 2015-12-02 | 2016-03-09 | 小米科技有限责任公司 | Automatic shooting method and device |
| CN105391942B (en) * | 2015-12-02 | 2019-04-16 | 小米科技有限责任公司 | Automatic photographing method and device |
| CN105654470A (en) * | 2015-12-24 | 2016-06-08 | 小米科技有限责任公司 | Image selection method, device and system |
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| CN105578061A (en) * | 2016-02-25 | 2016-05-11 | 广东欧珀移动通信有限公司 | Anti-shaking method and device for photographing, and mobile terminal |
| CN105959537A (en) * | 2016-05-03 | 2016-09-21 | 广东欧珀移动通信有限公司 | Imaging device control method, imaging device controlling unit and electronic device |
| CN105959557A (en) * | 2016-06-07 | 2016-09-21 | 深圳市万普拉斯科技有限公司 | Photographing method and device |
| CN105959557B (en) * | 2016-06-07 | 2019-05-10 | 深圳市万普拉斯科技有限公司 | Photographic method and device |
| CN108174185A (en) * | 2016-12-07 | 2018-06-15 | 中兴通讯股份有限公司 | A kind of photographic method, device and terminal |
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Application publication date: 20140305 |