CN104601901A - Terminal picture taking control method and terminal - Google Patents
Terminal picture taking control method and terminal Download PDFInfo
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- CN104601901A CN104601901A CN201510053364.0A CN201510053364A CN104601901A CN 104601901 A CN104601901 A CN 104601901A CN 201510053364 A CN201510053364 A CN 201510053364A CN 104601901 A CN104601901 A CN 104601901A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 238000003786 synthesis reaction Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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- 230000004927 fusion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
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- Engineering & Computer Science (AREA)
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Abstract
The invention provides a terminal picture taking control method and terminal. The method includes the steps of obtaining the current exposure coefficient and the maximum exposure coefficient of a terminal, taking various different exposure compensation coefficients between the current exposure coefficient and the maximum exposure coefficient, controlling the terminal to conduct picture taking on the same scene under the current exposure coefficient, the different exposure compensation coefficients and the maximum exposure coefficient, obtaining multiple original pictures, synthesizing the original pictures, and generating a final picture. By means of the terminal picture taking control method and terminal, the different exposure coefficients are taken between the current exposure coefficient and the maximum exposure coefficient, the pictures are taken under the exposure coefficients, the obtained pictures are synthesized and then output, and the problem that in the prior art, the picture taking effect is not good under the dark scheme is solved.
Description
Technical field
The present invention relates to application of taking pictures, particularly relate to a kind of terminal camera control method and terminal.
Background technology
Along with the enhancing of termination function, the dependence of user to intelligent terminal is increasing, as user often uses mobile phone to take pictures, and can not buy separately camera, and the shooting effect of the equipment such as mobile phone under half-light scene bad, have impact on the experience of user.
Therefore, how providing a kind of photographic method improving shooting effect under half-light, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of terminal camera control method and terminal, solve prior art half-light scene and to take pictures the poor problem of effect.
The invention provides a kind of terminal camera control method, in one embodiment, the method comprises: the current exposure coefficient and the maximum exposure coefficient that obtain terminal; Multiple different compensation factor is got between current exposure coefficient and maximum exposure coefficient; Control terminal is taken Same Scene with current exposure coefficient, multiple different compensation factor and described maximum exposure coefficient respectively, obtains multiple original photo; Multiple original photo is synthesized, generates final photo.
Further, the mode of getting multiple different compensation factor between current exposure coefficient and maximum exposure coefficient in above-described embodiment comprises: equal difference value, geometric ratio value.
Further, the multiple different compensation factor in above-described embodiment comprises: the different compensation factor being greater than 5.
Further, synthesizing multiple original photo in above-described embodiment, the step generating final photo comprises: the image outline obtaining each photo in multiple original photo, the image outline of each photo is merged the image outline generated in final photo; Obtain the image color of each photo in multiple original photo, calculate the image color of final photo according to the image color of each photo.
Further, above-described embodiment also comprises after the image color calculating final photo: the maximum brightness value obtaining the original photo adopting the shooting of current exposure coefficient, using the high-high brightness of maximum brightness value as final photo, the image brightness in the final photo of Serial regulation.
The invention provides a kind of terminal, in one embodiment, this device comprises: acquisition module, for obtaining current exposure coefficient and the maximum exposure coefficient of terminal; Value module, for getting multiple different compensation factor between current exposure coefficient and maximum exposure coefficient; Control module, takes Same Scene with current exposure coefficient, multiple different compensation factor and maximum exposure coefficient respectively for control terminal, obtains original photo; Synthesis module, for synthesizing multiple original photo, generates final photo.
Further, the value module in above-described embodiment gets multiple different compensation factor specifically for utilizing the mode of equal difference value or geometric ratio value between current exposure coefficient and maximum exposure coefficient.
Further, the value module in above-described embodiment is greater than the different compensation factor of 5 specifically for getting.
Further, the image outline of each photo, specifically for obtaining the image outline of each photo in multiple original photo, is merged the image outline generated in final photo by the synthesis module in above-described embodiment; Obtain the image color of each photo in multiple original photo, calculate the image color of final photo according to the image color of each photo.
Further, the synthesis module in above-described embodiment also for obtaining the maximum brightness value of the original photo adopting the shooting of current exposure coefficient, using the high-high brightness of maximum brightness value as final photo, the image brightness in the final photo of Serial regulation.
Beneficial effect of the present invention:
Method provided by the invention, by getting multiple different factor between current exposure coefficient from maximum exposure coefficient, take pictures under these factors respectively, then export after the synthesis of obtained photo, because the depth of exposure of these photos is different, in different photo, the profile of image just can obtain complementation thus obtain a relatively clear complete image outline, image color is also like this, so, the image outline that these photos synthesize in the photo obtained is clearer than single photo, bright in luster, the problem that effect of taking pictures under solving existing half-light scene is bad.
Accompanying drawing explanation
The flow chart of the terminal camera control method that Fig. 1 provides for first embodiment of the invention;
The structural representation of the terminal that Fig. 2 provides for second embodiment of the invention;
The flow chart of the terminal camera control method that Fig. 3 provides for third embodiment of the invention.
Embodiment
Now by embodiment mode by reference to the accompanying drawings the present invention made and further annotate explanation.
First embodiment:
The flow chart of the terminal camera control method that Fig. 1 provides for first embodiment of the invention; As shown in Figure 1, in the present embodiment, terminal camera control method provided by the invention comprises the following steps:
S101: the current exposure coefficient and the maximum exposure coefficient that obtain terminal;
Exposure Value when factor refers to taking pictures of terminal, EV value is combined by shutter speed value and f-number to represent that phtographic lens leads to a numerical value of light quantity, it is determined by time for exposure and aperture size, existing mobile phone does not generally support that aperture adjusts, and so factor is then determined by the time for exposure; Current exposure coefficient refer to user press take pictures button time, terminal acquiescence factor, maximum exposure coefficient is then determined by the performance of terminal equipment;
S102: get multiple different compensation factor between current exposure coefficient and maximum exposure coefficient;
In actual applications, terminal adopts current exposure coefficient often can not to take pictures perfect photo, and during maximum employing maximum exposure coefficient, also can exist in scene and divide compared with highlights the situation occurring excessive exposure, this step gets multiple different factor between current exposure coefficient and maximum exposure coefficient, be denoted as compensation factor, when terminal adopts these compensation factors to take pictures, effect of taking pictures is between current exposure coefficient and maximum exposure coefficient, for same image, the complementation of profile and color distortion just can be carried out;
S103: control terminal is taken Same Scene with current exposure coefficient, multiple different compensation factor and maximum exposure coefficient respectively, obtains original photo;
This step refers to when terminal is to certain image photographic, adopts different factor shooting multiple pictures respectively, for terminals such as mobile phones, adopts storage picture in different exposure time point exactly;
S104: synthesize multiple original photo, generates final photo.
In certain embodiments, the mode of getting multiple different compensation factor between current exposure coefficient and maximum exposure coefficient in embodiment illustrated in fig. 1 comprises: equal difference value, geometric ratio value.In actual applications, as long as although compensate factor between current exposure coefficient and maximum exposure coefficient, if but compensate factor infinite approach current exposure coefficient and/maximum exposure coefficient, or when these compensation factors are substantially identical, the profile of image in Part of photos taken and the very close situation of color is there will be in the original photo gathered, even if these photos are synthesized, the photo obtained is compared with the photo adopted captured by current exposure coefficient, the effect promoted is also not so good, therefore, this enforcement provides concrete value mode, the mode of equal difference/Geometric Sequence is adopted to carry out value, the variable gradient between compensation factor can be made more reasonable, the comparison in difference that terminal adopts these to compensate the photo captured by factor is obvious, better reference value is just possessed during synthesis, the effect of synthesizing the photo obtained is just better.
In certain embodiments, the multiple different compensation factor in embodiment illustrated in fig. 1 comprises: the different compensation factor being greater than 5.In actual applications, the original photo participating in synthesis is more, and these photos each other can be also more with reference to the place of complementation, therefore, the number of different compensation factor is The more the better, general is at least greater than 5, and the photo simultaneously participating in synthesizing is more, and processing speed is slower, therefore, can be there is a higher limit in the different number compensating factor, preferably, this higher limit is generally less than 15.
In certain embodiments, the step S104 in embodiment illustrated in fig. 1 comprises: the image outline obtaining each photo in multiple original photo, the image outline of each photo is merged the image outline generated in final photo; Obtain the image color of each photo in multiple original photo, calculate the image color of final photo according to the image color of each photo.In photo, scenery comprises image outline and image color, wherein image outline is (when the level of same reference object is different, the application is also thought different image outlines) delineate out, therefore, when photomontage, need to consider this two aspects simultaneously, the present embodiment then additionally provides the generating mode of image outline, the image outline in multiple photo taken Same Scene is adopted to merge, can cover the shortage by arc, determine best image outline, better effects if, image color is also like this, multiple photo is utilized to carry out complementation, make up the problem of Part of photos taken under-exposure.
In certain embodiments, above-described embodiment also comprises after the image color calculating final photo: the maximum brightness value obtaining the original photo adopting the shooting of current exposure coefficient, using the high-high brightness of maximum brightness value as final photo, the image brightness in the final photo of Serial regulation.In actual applications, in the photo synthesized by plurality of pictures, the brightness of certain image is often greater than the brightness of same image in the photo participating in synthesis, in order to further provide the experience of user, adapt as made photo and half-light scene, the present embodiment passes through the high-high brightness of maximum brightness value as photomontage of the photo taken by current exposure coefficient, Serial regulation (comprises straight line etc. and compares reduction, indicatrixes etc. preferably adjust mode) brightness of each image in final photo, the final photo that such synthesis obtains has identical maximum brightness value with the photo adopted captured by current exposure coefficient, and other positions linearly reduce, also achieve the exposure compensating to darkness part in the photo adopted captured by current exposure coefficient, in photo, between different images, brightness is excessively perfect.Whole structure is better.
Second embodiment:
The structural representation of the terminal that Fig. 2 provides for second embodiment of the invention; As shown in Figure 2, in the present embodiment, terminal 2 provided by the invention comprises: acquisition module 21, value module 22, control module 23 and synthesis module 24, wherein,
Acquisition module 21, for obtaining current exposure coefficient and the maximum exposure coefficient of terminal, and transmits it to value module 22;
These, for getting multiple different compensation factor between current exposure coefficient and maximum exposure coefficient, are then compensated factor, current exposure coefficient and maximum exposure coefficient and transfer to control module 23 by value module 22;
Control module 23, takes Same Scene with current exposure coefficient, multiple different compensation factor and maximum exposure coefficient respectively for control terminal, obtains original photo, afterwards these original photo is sent to synthesis module 24;
Synthesis module 24, for synthesizing multiple original photo, generates final photo, and exports final photo, as shown to user by display screen.
In certain embodiments, the value module 22 in embodiment illustrated in fig. 2 gets multiple different compensation factor specifically for utilizing the mode of equal difference value or geometric ratio value between current exposure coefficient and maximum exposure coefficient.
In certain embodiments, the value module 22 in embodiment illustrated in fig. 2 is specifically for getting the different compensation factor being greater than 5.
In certain embodiments, the image outline of each photo, specifically for obtaining the image outline of each photo in multiple original photo, is merged the image outline generated in final photo by the synthesis module 24 in embodiment illustrated in fig. 2; Obtain the image color of each photo in multiple original photo, calculate the image color of final photo according to the image color of each photo.
In certain embodiments, synthesis module 24 in embodiment illustrated in fig. 2 is also for obtaining the maximum brightness value of the original photo adopting the shooting of current exposure coefficient, using the high-high brightness of maximum brightness value as final photo, the image brightness in the final photo of Serial regulation.
In certain embodiments, the terminal that the present invention relates to, as the equipment such as mobile phone, flat board.
Now in conjunction with embody rule example the present invention done and further annotate explanation.
3rd embodiment:
The flow chart of the terminal camera control method that Fig. 3 provides for third embodiment of the invention; As shown in Figure 3, in the present embodiment, take terminal as mobile phone be example, terminal camera control method provided by the invention comprises the following steps:
S301: mobile phone enters screening-mode, determines current exposure coefficient and maximum exposure coefficient;
In actual applications, the factor adopted of mobile phone is generally 0.01 second, the maximum exposure coefficient supported is generally 0.1 second, for this situation, factor employing chronomere second involved by the application, the determined current exposure coefficient of this step is 0.01 second, and maximum exposure coefficient is 0.1 second;
S302: mobile phone is determined the number of compensation factor according to user's selection/default setting and chosen mode;
Such as, it is that equal difference is chosen that user have selected the mode of choosing, and number is 9;
S303: mobile phone is determined to compensate factor according to the number and mode of choosing that compensate factor;
Step in undertaking, compensates factor and is respectively 0.02,0.03,0.04,0.05,0.06,0.07,0.08 and 0.09 second;
S304: after user presses button of taking pictures, mobile phone gathers original photo;
After user determines reference object, press shooting push button, terminal is normally taken pictures, and makes backlight time remaining 0.1 second, and 0.01,0.02,0.03,0.04,0.05,0.06,0.07,0.08,0.09 and 0.1 second time, gathers 11 original photo respectively;
S305: mobile phone determines profile and the color of each image in final photo according to original photo;
Original photo all obtains same thing collection, one or more identical image is all possessed in these photos, for no other reason than that the time for exposure is different, profile/the color of same image in different photo can there are differences, as unclear in profile, color distortion etc., in final photo, the profile of each image can carry out Mutually fusion according to the profile of image same in all original photo and obtains, and color also can adopt existing algorithm to calculate to determine;
S306: mobile phone determines the high-high brightness of final photo according to the high-high brightness in the original photo gathered at current exposure coefficient;
The calculating of high-high brightness is simple, and the application repeats no more;
S307: mobile phone, under the condition ensureing final photo high-high brightness, carries out Serial regulation to the brightness of other images in final photo;
Such as, 2 images are had in final photo, the brightness of image 1 is 200, the brightness of image 2 is 100, and in the original photo that terminal gathered 0.01 second time image (being generally image 1) be 150 to the maximum, so, in final photo after the adjustment, the brightness of image 1 is 150, and the brightness of image 2 is 75;
S308: mobile phone generates final photo, and is shown to user by display.
In summary, by enforcement of the present invention, at least there is following beneficial effect:
By getting multiple different factor between current exposure coefficient from maximum exposure coefficient, take pictures under these factors respectively, then export after the synthesis of obtained photo, because the depth of exposure of these photos is different, in different photo, the profile of image just can obtain complementation thus obtain an image outline relatively completed, the color of image is also like this, so, the image outline that this these photo synthesizes in the photo obtained is clearer than single photo, bright in luster, the problem that effect of taking pictures under solving existing half-light scene is bad.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method can carry out by program the hardware that instruction is correlated with to have come, program can be stored in a computer read/write memory medium, and storage medium can as ROM/RAM, disk, CD etc.
Below be only the specific embodiment of the present invention; not any pro forma restriction is done to the present invention; every above execution mode is done according to technical spirit of the present invention any simple modification, equivalent variations, combination or modification, all still belong to the protection range of technical solution of the present invention.
Claims (10)
1. a terminal camera control method, is characterized in that, comprising:
Obtain current exposure coefficient and the maximum exposure coefficient of terminal;
Multiple different compensation factor is got between described current exposure coefficient and described maximum exposure coefficient;
Control terminal is taken Same Scene with described current exposure coefficient, described multiple different compensation factor and described maximum exposure coefficient respectively, obtains multiple original photo;
Described multiple original photo is synthesized, generates final photo.
2. terminal camera control method as claimed in claim 1, it is characterized in that, the mode of getting multiple different compensation factor between described current exposure coefficient and maximum exposure coefficient comprises: equal difference value, geometric ratio value.
3. terminal camera control method as claimed in claim 1, it is characterized in that, described multiple different compensation factor comprises: the different compensation factor being greater than 5.
4. the terminal camera control method as described in any one of claims 1 to 3, it is characterized in that, described multiple original photo is synthesized, the step generating final photo comprises: the image outline obtaining each photo in described multiple original photo, the image outline of described each photo is merged the image outline generated in described final photo; Obtain the image color of each photo in described multiple original photo, calculate the image color of described final photo according to the image color of described each photo.
5. terminal camera control method as claimed in claim 4, it is characterized in that, also comprise after the image color calculating described final photo: the maximum brightness value obtaining the original photo adopting the shooting of described current exposure coefficient, using the high-high brightness of described maximum brightness value as described final photo, the image brightness in final photo described in Serial regulation.
6. a terminal, is characterized in that, comprising:
Acquisition module, for obtaining current exposure coefficient and the maximum exposure coefficient of terminal;
Value module, for getting multiple different compensation factor between described current exposure coefficient and described maximum exposure coefficient;
Control module, takes Same Scene with described current exposure coefficient, described multiple different compensation factor and described maximum exposure coefficient respectively for control terminal, obtains multiple original photo;
Synthesis module, for synthesizing described multiple original photo, generates final photo.
7. terminal as claimed in claim 6, it is characterized in that, described value module gets multiple different compensation factor specifically for utilizing the mode of equal difference value or geometric ratio value between described current exposure coefficient and described maximum exposure coefficient.
8. terminal as claimed in claim 6, it is characterized in that, described value module is greater than the different compensation factor of 5 specifically for getting.
9. the terminal as described in any one of claim 6 to 8, is characterized in that, the image outline of described each photo, specifically for obtaining the image outline of each photo in described multiple original photo, is merged the image outline generated in described final photo by described synthesis module; Obtain the image color of each photo in described multiple original photo, calculate the image color of described final photo according to the image color of described each photo.
10. terminal as claimed in claim 9, it is characterized in that, described synthesis module is also for obtaining the maximum brightness value of the original photo adopting the shooting of described current exposure coefficient, using the high-high brightness of described maximum brightness value as described final photo, the image brightness in final photo described in Serial regulation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053364.0A CN104601901A (en) | 2015-02-02 | 2015-02-02 | Terminal picture taking control method and terminal |
| PCT/CN2015/075549 WO2016123850A1 (en) | 2015-02-02 | 2015-03-31 | Photographing control method for terminal, and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053364.0A CN104601901A (en) | 2015-02-02 | 2015-02-02 | Terminal picture taking control method and terminal |
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| CN104601901A true CN104601901A (en) | 2015-05-06 |
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| CN201510053364.0A Pending CN104601901A (en) | 2015-02-02 | 2015-02-02 | Terminal picture taking control method and terminal |
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| CN (1) | CN104601901A (en) |
| WO (1) | WO2016123850A1 (en) |
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| CN106162024A (en) * | 2016-08-02 | 2016-11-23 | 乐视控股（北京）有限公司 | Photo processing method and device |
| CN106412452A (en) * | 2016-09-21 | 2017-02-15 | 北京空间机电研究所 | In-orbit exposure control method for wide dynamic range expansion of images |
| CN107105171A (en) * | 2017-06-20 | 2017-08-29 | 北京小米移动软件有限公司 | Photographic method, device and terminal device |
| CN108833802A (en) * | 2018-09-18 | 2018-11-16 | Oppo广东移动通信有限公司 | Exposure control method and device and electronic equipment |
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Also Published As
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| WO2016123850A1 (en) | 2016-08-11 |
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