CN101098410A - Auxiliary photo-taking system and method - Google Patents
Auxiliary photo-taking system and method Download PDFInfo
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- CN101098410A CN101098410A CNA2006100362332A CN200610036233A CN101098410A CN 101098410 A CN101098410 A CN 101098410A CN A2006100362332 A CNA2006100362332 A CN A2006100362332A CN 200610036233 A CN200610036233 A CN 200610036233A CN 101098410 A CN101098410 A CN 101098410A
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Abstract
An auxiliary shooting system and a relative method can be used in an electric device with a pre-browse module, via which the electric device can real-time correct the pre-browse picture of the pre-browse module when shoots at low brightness. The invention comprises a calculation module, a converting module, a processing module and an output module, wherein the converting module converts the pre-browse image via color format, the processing module processes the converted pre-browse image via image brightness, and the output module outputs the pre-browse image after brightness process to the pre-browse module to be browsed by user.
Description
[technical field]
The present invention is relevant for a kind of auxiliary photo-taking system and method, particularly relevant for auxiliary photo-taking system of taking pictures under the environment of low-light (level) and method.
[background technology]
The electronic equipment of general tool camera function (as the mobile phone of tool camera function, personal computer etc.) is when taking pictures under the environment of low-light (level), use this electronic equipment difficulty (as can't judge under this illumination can take pictures, this takes pictures the position and whether photo angle is fit to take pictures and whether the parameter of electronic equipment is fit to take pictures (as focal length etc.)) of taking pictures owing to the light reason causes the user, thereby cause under low-light (level), take pictures difficulty even can't take pictures of user.
Therefore, how providing a kind of is overcome when taking pictures under the low-light (level) environment through electronic equipment because auxiliary photo-taking system and method that the difficulty of taking pictures that insufficient light caused maybe can't be taken pictures promptly are current industry problem demanding prompt solutions.
[summary of the invention]
In view of the shortcoming of above-mentioned prior art, main purpose of the present invention is to provide a kind of auxiliary photo-taking system that can revise the preview image under the environment of low-light (level) when electronic equipment is taken pictures.
For reaching above-mentioned purpose, the invention provides a kind of auxiliary photo-taking system, it is applied in the electronic equipment of a tool previewing module, can revise the preview image of this previewing module when this electronic equipment is taken pictures under the environment of low-light (level) in real time.This auxiliary photo-taking system comprises: in order to the computing module of the sum total mean value of the pixel intensity of calculating this preview image; In order to the preview image of this previewing module is carried out the modular converter of color format conversion; In order to will carry out the processing module that image brilliance is handled through the preview image of color format conversion; And in order to being output in the output module of this previewing module through the preview image that image brilliance is handled for user's preview.
Moreover this auxiliary photo-taking system also comprises the image adjusting module, and in order to recomputating the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value, to strengthen the image effect of this preview image.
In addition, the present invention also provides a kind of auxiliary photo-taking method, and it comprises: the preview image of this previewing module is carried out the conversion of color form; To carry out image brilliance through the preview image of color format conversion handles; And will be output in this previewing module through the preview image that image brilliance is handled, for user's preview.
Auxiliary photo-taking method of the present invention also comprises the sum total mean value of the pixel intensity of calculating this preview image, and when this sums up mean value less than a preset range, is the environment of low-light (level).
Moreover auxiliary photo-taking method of the present invention also comprises and recomputates the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value, to strengthen the image effect of this preview image.
Compared to prior art, auxiliary photo-taking system of the present invention and method can overcome when taking pictures under the low-light (level) environment because insufficient light causes the disappearance of the difficulty of taking pictures, and can provide revised preview image in real time for user's preview, improved the convenience that the user takes pictures under the low-light (level) environment.
[description of drawings]
Fig. 1 is in order to show the basic boom block diagram of auxiliary photo-taking system of the present invention.
Fig. 2 is in order to show the schematic flow sheet of auxiliary photo-taking method of the present invention.
[embodiment]
Below by specific instantiation explanation embodiments of the present invention, the personage who is familiar with this skill can understand other advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can be implemented or be used by other different instantiation, and the every details in this specification also can be carried out various modifications and change based on different viewpoints and application under not departing from spirit of the present invention.
See also shown in Figure 1ly, Fig. 1 is the basic framework calcspar of auxiliary photo-taking system of the present invention.As shown in the figure, auxiliary photo-taking system 1 of the present invention comprises: computing module 10, modular converter 11, processing module 12 and output module 13, can be applicable in the electronic equipment of a tool previewing module, can revise the preview image of this previewing module when this electronic equipment is taken pictures in real time under the environment of low-light (level).Wherein, this electronic equipment can be mobile phone, digital camera, personal computer of tool camera function etc., this previewing module be selected from a LCD (Liquid Crystal Display, LCD) or organic electro-luminescent display (OLED, organiclight-emitting diode) etc.
This computing module 10 can be the program that is stored in this electronic equipment and falls to being located at Integrated electrode in this electronic equipment, in order to the sum total mean value of the pixel intensity of calculating this preview image, when this sum total mean value is the environment of low-light (level) during less than a preset range.The sum total mean value of the pixel intensity of this preview image is red, green, blue (Red, Green, Blue are called for short R, G, B) R, the G of color form and the difference mean value of B three parameters, and this preset range is R, the G of R.G.B color form and the maximum (P%) of B three parameters.If the resolution of the preview image that mobile phone (also being this electronic equipment) is captured is 640 * 480, the maximum of the pixel R of this preview image, G and B three parameters is 255, then this computing module 10 sees through equation (1), (2) and (3) sum up mean value, be the calculating that R is average, G is average and B is average, this equation (1), (2) and (3) are as follows:
R is average=(R1+R2+ ... + R640 * 480) ÷ (640 * 480) (1)
G is average=(G1+G2+ ... + G640 * 480) ÷ (640 * 480) (2)
B is average=(B1+B2+ ... + B640 * 480) ÷ (640 * 480) (3)
Wherein, the pixel R of this preview image, G, B value and can equal 0 or 255 all between 0 to 255.Average as this R, G is average and B during on average all less than 255 * P%, this photo environment both had been the low-light (level) environment.Preview image with this previewing module when this modular converter 11 is used to enter the environment of low-light (level) carries out the color format conversion.Wherein, the R.G.B color format conversion that is converted to of this color form becomes reference colour (Lab) color form.Need special instruction person, only need carry out the correcting process of brightness (Lightness is called for short L) value when carrying out brightness processed at the image of Lab color form, each pixel all needs modified R, G and B three parameter values significantly to reduce operand when adopting R.G.B color form to carry out brightness processed.
This processing module 12, handle in order to will carry out image brilliance through the preview image of color format conversion, the brightness range of this preview image is K1-K2 (K2＞K1), and the brightness value L i of the pixel of this preview image (i=1,2 ..., 640 * 480) all revise by following formula (4):
LI＝((Li-K1)÷(K2-K1))×255(4)
Wherein, LI is for revising the back value.
This output module 13 is in order to exporting to this previewing module through the preview image that image brilliance is handled, for user's preview.
This auxiliary photo-taking system 1 also comprises image adjusting module 14, and in order to recomputating the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value, to strengthen the image effect of this preview image.
See also shown in Figure 2ly, Fig. 2 shows the schematic flow sheet of auxiliary photo-taking method of the present invention, and as shown in the figure, this auxiliary photo-taking method comprises the following steps:
In step S20, calculate the sum total mean value of the pixel intensity of this preview image, and when this sums up mean value less than a preset range, be the environment of low-light (level).Then proceed to step S21.
In step S21, the preview image of this previewing module is carried out the conversion of color form.Then proceed to step S22.
In step S22, will carry out image brilliance through the preview image of color format conversion and handle.Then proceed to step S23.
In step S23, recomputate the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value, so as to strengthening the image effect of this preview image.
In step S24, will export to this previewing module through the preview image of adjusting contrast value, for user's preview.For further highlighting principle of the present invention and effect, be that mobile phone is described in further detail with this electronic equipment.This auxiliary photo-taking method comprises:
(1) calculate the sum total mean value of the pixel intensity of these preview images by this computing module 10, calculate promptly that this R is average, G is average and B is average, and when this sum total mean value less than a preset range (as; 35%) time, this photo environment both had been the low-light (level) environment.
(2) by this modular converter 11 this preview image is carried out the conversion of color form, also be about to this preview image and become Lab color form by R.G.B color format conversion.
(3) will carry out image brilliance through the preview image of these modular converter 11 color format conversion by this processing module 12 handles.
(4) recomputate the preview image of handling through image brilliance by this image adjusting module 14, and will be adjusted into the γ value, to strengthen the image effect of this preview image through the contrast value of the preview image of image brilliance processing.
(5) will export to this previewing module through the preview image of adjusting contrast value by this output module 13, for user's preview.
In sum, the system and the method for auxiliary photo-taking of the present invention are passed through modular converter, processing module, the running of image adjusting module and output module, when entering the low-light (level) environment, the preview image of this previewing module is carried out the conversion of color form, preview image after will changing again carries out image brilliance to be handled, and can utilize and adjust the image effect that contrast value is strengthened this preview image, preview image after will handling is at last exported to this previewing module, for user's preview, cause the disappearance of the difficulty of taking pictures when under the low-light (level) environment, taking pictures owing to insufficient light so as to overcoming, and can provide revised preview image in real time for user's preview, improve the convenience that the user takes pictures greatly under the low-light (level) environment, can increase the interest that the user uses this electronic equipment to take pictures simultaneously.
Claims (11)
1, a kind of auxiliary photo-taking system, it is applied in the electronic equipment of a tool previewing module, can revise the preview image of this previewing module when this electronic equipment is taken pictures under the environment of low-light (level) in real time, it is characterized in that this auxiliary photo-taking system comprises:
Modular converter, it is in order to carry out the preview image of this previewing module the conversion of color form;
Processing module, it is handled in order to will carry out image brilliance through the preview image of this modular converter color format conversion;
Output module, it is in order to being output in this previewing module through the preview image that this processing module image brilliance is handled, for user's preview.
2, auxiliary photo-taking system according to claim 1 is characterized in that: it also comprises computing module, in order to the sum total mean value of the pixel intensity of calculating this preview image, and when this sum total mean value during less than a preset range, is the environment of low-light (level).
3, auxiliary photo-taking system according to claim 2 is characterized in that: this computing module is selected from one and is stored in the program of this electronic equipment and is located at wherein one of Integrated electrode in the electronic equipment.
4, auxiliary photo-taking system according to claim 1 is characterized in that: it also comprises the image adjusting module, and in order to recomputating the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value.
5, auxiliary photo-taking system according to claim 1 is characterized in that: this previewing module is selected from wherein one of a LCD and organic electro-luminescent display.
6, auxiliary photo-taking system according to claim 1 is characterized in that: the red, green, blue color format conversion that is converted to of this color form becomes reference colour color form.
7, a kind of auxiliary photo-taking method, it is applied in the electronic equipment of a tool previewing module, can revise the preview image of this previewing module when this electronic equipment is taken pictures under the environment of low-light (level) in real time, it is characterized in that this auxiliary photo-taking method comprises:
The preview image of this previewing module is carried out the conversion of color form;
To carry out image brilliance through the preview image of color format conversion handles;
To export to this previewing module through the preview image that image brilliance is handled, for user's preview.
8, auxiliary photo-taking method according to claim 7 is characterized in that: it also comprises the sum total mean value of the pixel intensity of calculating this preview image, and when this sums up mean value less than a preset range, is the environment of low-light (level).
9, auxiliary photo-taking method according to claim 7 is characterized in that: it also comprises and recomputates the preview image of handling through image brilliance, and the contrast value that will pass through the preview image of image brilliance processing is adjusted into the γ value.
10, auxiliary photo-taking method according to claim 7 is characterized in that: this previewing module is selected from wherein one of a LCD and organic electro-luminescent display.
11, according to the auxiliary photo-taking method of claim 7, it is characterized in that: the red, green, blue color format conversion that is converted to of this color form becomes reference colour color form.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100362332A CN101098410A (en) | 2006-06-30 | 2006-06-30 | Auxiliary photo-taking system and method |
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| CNA2006100362332A CN101098410A (en) | 2006-06-30 | 2006-06-30 | Auxiliary photo-taking system and method |
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| CN101098410A true CN101098410A (en) | 2008-01-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811601A (en) * | 2014-01-24 | 2015-07-29 | 青岛海信移动通信技术股份有限公司 | Method and device for displaying preview image |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811601A (en) * | 2014-01-24 | 2015-07-29 | 青岛海信移动通信技术股份有限公司 | Method and device for displaying preview image |
| CN104811601B (en) * | 2014-01-24 | 2018-01-26 | 青岛海信移动通信技术股份有限公司 | A kind of method and apparatus for showing preview image |
| CN107979729A (en) * | 2014-01-24 | 2018-05-01 | 青岛海信移动通信技术股份有限公司 | A kind of method and apparatus for showing preview image |
| CN107979729B (en) * | 2014-01-24 | 2020-06-16 | 青岛海信移动通信技术股份有限公司 | Method and equipment for displaying preview image |
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