CN103871014A - Image color changing method and device - Google Patents
Image color changing method and device Download PDFInfo
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- CN103871014A CN103871014A CN201210548810.1A CN201210548810A CN103871014A CN 103871014 A CN103871014 A CN 103871014A CN 201210548810 A CN201210548810 A CN 201210548810A CN 103871014 A CN103871014 A CN 103871014A
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Abstract
The embodiment of the invention discloses an image color changing method and an image color changing device and relates to the technical field of image processing. Color parameters of an appointed area in an image can be automatically modified, so that the color of the image is changed, the time and the vigor for modifying the image are avoided, and the experience degree of a user is improved. The method comprises the following steps of acquiring the outline of an appointed object in the image; identifying the appointed area in the outline of the appointed object; according to a preset rule, modifying the color parameters of the appointed area.
Description
Technical field
The present invention relates to technical field of image processing, relate in particular to a kind of method and device that changes color of image.
Background technology
Current many terminal devices on the market all have camera function, user is taking after photo, the content such as personage, object tending in comparison film is modified, for example: user is by after using smart mobile phone to autodyne, photo can be inputted to computer, and use the amending image software comparison film in computer to modify, to change the attribute such as contrast, color of photo, thereby beautify photo.
The problem of prior art
Revise and often need to consume a large amount of time of user for the color of photo content, when especially the number of pictures of shooting is more, needs user to expend a large amount of time and efforts and revise photo, reduced user's Experience Degree.
Summary of the invention
Embodiments of the invention provide a kind of method and device that changes color of image, can automatically revise the color parameter of appointed area in image, thereby change the color of image, the required time and efforts expending while having avoided revising image, has improved user's Experience Degree.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments of the invention provide a kind of method that changes color of image, comprising:
Obtain the profile of specified object in image;
In the profile of described specified object, identify appointed area;
According to preset rules, revise the color parameter of described appointed area.
Second aspect, embodiments of the invention provide a kind of device that changes color of image, comprising:
Image processing module, for obtaining the profile of image specified object;
Identification module, identifies appointed area for the profile in described specified object;
Modified module, for according to preset rules, revises the color parameter of described appointed area.
Method and the device of the change color of image that the embodiment of the present invention provides, can identify the profile of objects in images, and automatically revise the color parameter of appointed area in image, thereby change the color of image.Compared with prior art, the present invention can modify to the color of image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow diagram of a kind of method that changes color of image that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the instantiation of a kind of method that changes color of image that Fig. 1 a provides for the embodiment of the present invention;
The another kind that Fig. 2 a provides for the embodiment of the present invention changes a kind of process flow diagram of the method for color of image;
The another kind that Fig. 2 b provides for the embodiment of the present invention changes the another kind of process flow diagram of the method for color of image;
The another kind that Fig. 2 c provides for the embodiment of the present invention changes the schematic diagram of the instantiation of the method for color of image;
Fig. 3 a provide for the embodiment of the present invention another change the process flow diagram of the method for color of image;
Fig. 3 b provide for the embodiment of the present invention another change the schematic diagram of the instantiation of the method for color of image;
The structural representation of a kind of device that changes color of image that Fig. 4 provides for the embodiment of the present invention;
The another kind that Fig. 5 a provides for the embodiment of the present invention changes a kind of structural representation of the device of color of image;
The another kind that Fig. 5 b provides for the embodiment of the present invention changes the another kind of structural representation of the device of color of image;
The another kind that Fig. 5 c provides for the embodiment of the present invention changes another structural representation of the device of color of image.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, the embodiment of the present invention can be carried out by the image processing equipment with image collecting function and Digital Image Processing function, for example: can be by having the execution such as a smart mobile phone, digital camera, body sense equipment of Digital Image Processing chip and camera.
In embodiments of the present invention, provide a kind of method that changes color of image, as shown in Figure 1, having comprised:
101, obtain the profile of specified object in image.
In the present embodiment, image processing equipment can take conventional technological means to obtain the profile of specified object in collected image, for example: digital camera can, by conventional depth map analytic approach or skeletal graph analytic approach, be analyzed and obtain the profile of human body as shown in Figure 1a to the personage in a photo.
102, in the profile of described specified object, identify appointed area.
For example: digital camera can pass through face recognition technology, in the profile of human body as shown in Figure 1a, identify the face area of human body, and using face area as appointed area.
103, according to preset rules, revise the color parameter of described appointed area.
In the present embodiment, can preset color parameter, and the corresponding relation prestoring between each color parameter and region, for example: the corresponding color parameter of face area can be: tone: 85, saturation degree: 90, brightness: 205; Rgb value is 128:128:0, and digital camera can be adjusted into 128:128:0 by the color of face area automatically; And tone: 85, saturation degree: 90, brightness: 205.
Further alternative, preset rules can be also the deviate of default color parameter, for example: the deviate of the corresponding color parameter of face area can be :-22:+22:-11, digital camera can be automatically by the color of face area by original 128:128:60, be adjusted to 106:150:49.
The method of the change color of image that the embodiment of the present invention provides, can identify the profile of objects in images, and automatically revises the color parameter of appointed area in image, thereby changes the color of image.Compared with prior art, the present invention can modify to the color of image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
In embodiments of the present invention, also provide a kind of method that changes color of image, as shown in Figure 2 a, having comprised:
201, obtain the profile of human body in image.
Image processing equipment, by conventional depth map analytic approach or skeletal graph analytic approach, is analyzed and obtains the profile of human body to the personage in a photo.
202, in the profile of described human body, identify the region at face place.
Image processing equipment can pass through face recognition technology, identifies the region at the face place of human body in the profile of human body.
203, extract the color parameter in the region at described face place.
For example: image processing equipment can extract means by conventional color the color parameter of face area is extracted, such as: the color parameter of the face area extracting is: tone: 85, and saturation degree: 90, brightness: 205; Rgb value is 128:128:60,
204, according to the color parameter in the region at described face place, in the profile of described human body, identify the region at skin place.
Because the color of other partial skins of human body is close with the color of face, in the practical application of the present embodiment, image processing equipment can be determined region close with the color parameter of face in the profile of human body, and region using the region close with the color parameter of face as skin place.Concrete, in the present embodiment, can be by being less than the region of predetermined threshold value scope with the difference of the color parameter of face, as the region at skin place,
For example: as shown in Figure 2 c, predetermined threshold value scope is (5 ,+5), and the color parameter of face area is: rgb value is 128:128:60, in the profile of the human body shown in Fig. 2 c, the color parameter in A, B, C, D region respectively:
RGB124:124:63；
RGB 125:125:62；
RGB 126:126:62；
RGB 100:100:70。
The difference of A, B, the rgb value in C region and the rgb value of face area (be in RGB in the numerical value of any one and the rgb value of face area the difference of corresponding numerical value be less than 5) within the scope of predetermined threshold value, A, B, C region are the region at skin place.
Wherein, image processing equipment obtain in the profile of human body color parameter specific implementation can have multiple, for example:
Image processing equipment can first be converted to other color specification system by the coloured image that comprises portrait, such as: HSV color specification system and YCbCr color specification system, convert respectively the image under different color specification systems to corresponding binary map again, and obtain the color parameter in the profile of human body according to binary map.The specific implementation process of binary map conversion can be carried out by the computing machine that has moved the graphic processors such as MATLAB.
205a, described according to preset rules, revise the color parameter in the region at described face place and the region at described skin place.
With 205a, optional side by side, in embodiments of the present invention, as shown in Figure 2 b, can also comprise:
205b, in the profile of described human body, determines the part except the region at described skin place and the region at described face place.
For example: as shown in Figure 2 c, the part except the region at described skin place and the region at described face place is D, E, F region.
206b, according to preset rules, revises the color parameter of the part except the region at described skin place and the region at described face place.
For example: as shown in Figure 2 c, image processing equipment can, according to preset rules, be revised the color parameter in D, E, F region.
The method of the change color of image that the embodiment of the present invention provides, can identify the profile of human body in image, and automatically revises the color parameter of appointed area in the profile of human body, thereby changes the color of figure skin, clothing in image.Compared with prior art, the present invention can modify to the color of personage in image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
In embodiments of the present invention, provide again a kind of method that changes color of image, as shown in Figure 3 a, having comprised:
301, obtain the profile of specified object in image.
302, the profile of described specified object and default profile sample are contrasted, and obtain the profile sample corresponding with the profile of described specified object.
In the present embodiment, at image processing equipment multiple profile samples that can prestore, and each profile sample has been divided at least one region, for example: as shown in Figure 3 b, in digital camera, store the profile sample of multiple clothing, and the profile sample of each clothing has all been divided into upper garment and these two regions of lower clothing, digital camera can be determined the profile of personage's clothing with it in captured photo, for example: digital camera can be using the region except the region at skin place and the region at face place in the profile of human body as the profile of personage's clothing with it.Determine the profile sample the most similar to the profile of the clothing with it of personage in photo by existing image processing techniques again, such as: the 1-1 in Fig. 3 b, and can be according to the region division rule of determined profile sample, in comparison film, the profile of personage's clothing with it marks off appointed area, following clothing region.
303, obtain the region division rule of described profile sample.
304, in the profile of described specified object, identify appointed area according to described region division rule.
305, according to preset rules, revise the color parameter of described appointed area.
The method of the change color of image that the embodiment of the present invention provides, can identify the profile of objects in images, and automatically revises the color parameter of appointed area in image, thereby changes the color of image.Compared with prior art, the present invention can modify to the color of image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
In embodiments of the present invention, provide a kind of device that changes color of image, as shown in Figure 4, having comprised:
The device of the change color of image that the embodiment of the present invention provides, can identify the profile of objects in images, and automatically revises the color parameter of appointed area in image, thereby changes the color of image.Compared with prior art, the present invention can modify to the color of image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
Further, in embodiments of the present invention, also provide a kind of device that changes color of image, having comprised:
Optionally, as shown in Figure 5 a, described in obtain specified object in image profile be the profile that obtains human body in image, described identification module 52 comprises:
Face identification unit 521a, for identifying the region at face place at the profile of described human body.
The first recognition unit 523a for according to the color parameter in the region at described face place, identifies the region at skin place in the profile of described human body.
Optionally, described modified module 53, also for described according to preset rules, revise the color parameter in the region at described face place and the region at described skin place.
Further alternative, as shown in Figure 5 b, described identification module 52 also comprises: the second recognition unit 521b, for the profile at described human body, determines the part except the region at described skin place and the region at described face place.
Described modified module 53, also, for according to preset rules, revises the color parameter of the part except the region at described skin place and the region at described face place.
The device of the change color of image that the embodiment of the present invention provides, can identify the profile of human body in image, and automatically revises the color parameter of appointed area in the profile of human body, thereby changes the color of figure skin, clothing in image.Compared with prior art, the present invention can modify to the color of personage in image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
Further alternative again, as shown in Figure 5 c, described identification module 52 comprises:
The device of the change color of image that the embodiment of the present invention provides, can identify the profile of objects in images, and automatically revises the color parameter of appointed area in image, thereby changes the color of image.Compared with prior art, the present invention can modify to the color of image automatically, thereby the required time and efforts expending while avoiding user to revise image has improved user's Experience Degree.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for apparatus embodiments, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a method that changes color of image, is characterized in that, comprising:
Obtain the profile of specified object in image;
In the profile of described specified object, identify appointed area;
According to preset rules, revise the color parameter of described appointed area.
2. the method for change color of image according to claim 1, is characterized in that, described in obtain specified object in image profile be the profile that obtains human body in image, describedly in the profile of described specified object, identify appointed area and comprise:
In the profile of described human body, identify the region at face place;
Extract the color parameter in the region at described face place;
According to the color parameter in the region at described face place, in the profile of described human body, identify the region at skin place.
3. the method for change color of image according to claim 1 and 2, it is characterized in that, described according to preset rules, the color parameter of revising described appointed area comprises: described according to preset rules, revise the color parameter in the region at described face place and the region at described skin place.
4. the method for change color of image according to claim 1 and 2, is characterized in that, also comprises: in the profile of described human body, determine the part except the region at described skin place and the region at described face place;
Described according to preset rules, the color parameter of revising described appointed area comprises: according to preset rules, revise the color parameter of the part except the region at described skin place and the region at described face place.
5. the method for change color of image according to claim 1, is characterized in that, describedly in the profile of described specified object, identifies appointed area and comprises:
The profile of described specified object and default profile sample are contrasted, and obtain the profile sample corresponding with the profile of described specified object;
Obtain the region division rule of described profile sample;
And in the profile of described specified object, identify appointed area according to described region division rule.
6. a device that changes color of image, is characterized in that, comprising:
Image processing module, for obtaining the profile of image specified object;
Identification module, identifies appointed area for the profile in described specified object;
Modified module, for according to preset rules, revises the color parameter of described appointed area.
7. the device of change color of image according to claim 6, is characterized in that, described in obtain specified object in image profile be the profile that obtains human body in image, described identification module comprises:
Face identification unit, for identifying the region at face place at the profile of described human body;
Extraction unit, for extracting the color parameter in region at described face place;
The first recognition unit for according to the color parameter in the region at described face place, identifies the region at skin place in the profile of described human body.
8. according to the device of the change color of image described in claim 6 or 7, it is characterized in that, described modified module, also for described according to preset rules, revise the color parameter in the region at described face place and the region at described skin place.
9. according to the device of the change color of image described in claim 6 or 7, it is characterized in that, described identification module also comprises: the second recognition unit, for the profile at described human body, determine the part except the region at described skin place and the region at described face place;
Described modified module, also, for according to preset rules, revises the color parameter of the part except the region at described skin place and the region at described face place.
10. the device of change color of image according to claim 6, is characterized in that, described identification module comprises:
Contrast unit, for the profile of described specified object and default profile sample are contrasted, and obtains the profile sample corresponding with the profile of described specified object;
Division unit, for obtaining the region division rule of described profile sample;
Region identification block, for and identify appointed area according to described region division rule at the profile of described specified object.
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