CN105869111B - Colour of skin adjusting method and device when more people take a group photo - Google Patents
Colour of skin adjusting method and device when more people take a group photo Download PDFInfo
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- CN105869111B CN105869111B CN201610211587.XA CN201610211587A CN105869111B CN 105869111 B CN105869111 B CN 105869111B CN 201610211587 A CN201610211587 A CN 201610211587A CN 105869111 B CN105869111 B CN 105869111B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001815 facial effect Effects 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims description 43
- 239000003086 colorant Substances 0.000 claims description 7
- 241000208340 Araliaceae Species 0.000 claims description 4
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 4
- 235000008434 ginseng Nutrition 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
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Abstract
The present invention relates to the colour of skin adjusting methods and device when a kind of more people group photo.The method includes the steps: the face in picture of finding a view when to image taking identifies, obtains facial image；When the number of facial image is greater than 1, the average color of the corresponding colour of skin of each facial image is obtained；It is determined according to each average color and refers to color value；Each average color is adjusted to new color value, wherein the absolute value of new color value and first difference with reference to color value is less than the first preset threshold.The present invention realizes colour of skin equilibrium when more people group photo, makes the photo harmony and natural taken, more beautiful.
Description
Technical field
It is a kind of colour of skin adjusting method when taking a group photo more particularly to more people, more the present invention relates to technical field of image processing
Colour of skin regulating device when people takes a group photo.
Background technique
With the development of science and technology, the raising of the especially mobile terminals pixel such as smart phone, more and more people are using shifting
Dynamic terminal is taken pictures.When carrying out more people group photo using mobile terminal, if the colour of skin of some colours of skin and other people
There are biggish differences, for example, some are pitch-darker, other people are more pale, then the comparison of the colour of skin is anti-after taking a group photo
Difference allows photo to seem not " harmony ", influences the effect of photo.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, colour of skin adjusting method and device when a kind of more people group photo is provided, it can
Colour of skin equilibrium to a certain extent is carried out according to each one colour of skin degree in more people group photo, makes photo harmony and natural.
In order to achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of colour of skin adjusting method when more people take a group photo, comprising steps of
The face found a view in picture when to image taking identifies, obtains facial image；
When the number of facial image is greater than 1, the average color of the corresponding colour of skin of each facial image is obtained；
It is determined according to each average color and refers to color value；
Each average color is adjusted to new color value, wherein new color value and first difference with reference to color value is absolute
Value is less than the first preset threshold.
A kind of colour of skin regulating device when more people take a group photo, comprising:
Facial image obtains module, and the face in picture of finding a view when for image taking identifies, obtains face figure
Picture；
Average color obtains module, when being greater than 1 for the number in facial image, obtains the corresponding colour of skin of each facial image
Average color；
With reference to color value determining module, color value is referred to for determining according to each average color；
Color value adjustment module, for each average color to be adjusted to new color value, wherein new color value and the reference color
The absolute value of first difference of value is less than the first preset threshold.
Colour of skin adjusting method and device when the present invention more people group photo obtain each individual when detecting as more people group photo
The colour of skin average color of face image determines according to each average color and refers to color value, each average color is then adjusted to ginseng
It examines color value or with reference near color value, so that colour of skin when realizing more people group photo is balanced, makes the photo harmony and natural taken,
It is more beautiful.
Detailed description of the invention
The flow diagram of colour of skin adjusting method embodiment when Fig. 1 is more people group photo of the invention；
The structural schematic diagram of colour of skin regulating device embodiment one when Fig. 2 is more people group photo of the invention；
The structural schematic diagram of colour of skin regulating device embodiment two when Fig. 3 is more people group photo of the invention；
Fig. 4 is the structural schematic diagram of color value adjustment module embodiment one of the present invention；
Fig. 5 is the structural schematic diagram of color value adjustment module embodiment two of the present invention.
Specific embodiment
It is with reference to the accompanying drawing and preferably real for the effect for further illustrating technological means adopted by the present invention and acquirement
Example is applied, to technical solution of the present invention, carries out clear and complete description.
As shown in Figure 1, colour of skin adjusting method when a kind of more people take a group photo, comprising steps of
S110, to image taking when the face found a view in picture identify, obtain facial image；
S120, facial image number be greater than 1 when, obtain the average color of the corresponding colour of skin of each facial image；
S130, it is determined according to each average color with reference to color value；
S140, each average color is adjusted to new color value, wherein new color value and first difference with reference to color value
Absolute value less than the first preset threshold.
In step s 110, picture of finding a view is the picture occurred in terminal screen when opening camera is shot, for example,
The front camera of mobile phone is opened, the picture occurred in mobile phone screen is picture of finding a view.Knowledge method for distinguishing is carried out to face
It can be realized according to existing mode in the prior art.
In the step s 120, if the face number recognized is more than 1, mean to take pictures for more people, need to call
Method of the invention is taken pictures if the face number recognized is 1 using conventional.
It after obtaining each facial image, is identified by skin in the prior art, skin in face-image can be filtered out
Part, then the color value of parts of skin is averaged, so that it may obtain everyone skin of face under the present circumstances
Average color.
In step s 130, due to it needs to be determined that colour of skin well-balanced adjustment a reference standard, so needing according to each flat
Equal color value, which determines, refers to color value.It determines there are many kinds of the methods with reference to color value, for example, in one embodiment, according to each average
Color value determines that with reference to the step of color value may include: the average value for obtaining each average color, using the average value of acquisition as reference
Color value.In another embodiment, determine that with reference to the step of color value may include: suitable according to a certain size according to each average color
Sequence arranges each average color, and average color will be located in the middle after arrangement as with reference to color value.If be located in the middle after arrangement
There are two average colors, any one that can be chosen in the two is used as with reference to color value, or the two are averaged, and obtains
The average value arrived, which is used as, refers to color value, or using any one color value between the two average colors as with reference to color value etc..
In addition, user can also arbitrarily select one of as with reference to color value in two people group photo.
In order to guarantee the authenticity of picture, and the rate of raising colour of skin equilibrium, it is also necessary to more each average color and ginseng
The difference degree of color value is examined, so, in one embodiment, determined according to each average color after referring to color value, it will be each average
Color value is adjusted to before new color value, can with comprising steps of
Obtain the absolute value of each average color Yu second difference with reference to color value；
If the absolute value of the second difference is more than or equal to the second preset threshold and is less than or equal to third predetermined threshold value, by this
The step of corresponding average color of two differences is adjusted to new color value, the face in picture of finding a view when otherwise returning to image taking
The step of being identified, wherein the second preset threshold is more than or equal to the first preset threshold.
Second preset threshold and third predetermined threshold value can need to be determined according to user.When the absolute value of the second difference
When greater than third predetermined threshold value, it is meant that the two difference is excessive, then is likely to be the ethnic group of the different colours of skin, such as a black race
People and multiple yellows take pictures, and do not carry out equilibrium to the average color at this time, in order to avoid reduce the authenticity of photo.When second
When the absolute value of difference is less than the second preset threshold, it is meant that the average color and the different very little of reference color value difference at this time need not
Further equilibrium is carried out, the effect that photo comes out is also relatively beautiful.When the absolute value of the second difference is more than or equal to the second default threshold
When value is less than or equal to third predetermined threshold value, it is meant that the difference of the average color and reference color value has been more than certain threshold value, and
It does not reach the limit values, belongs to the range that equilibrium is adjusted, further balance optimizing can be carried out using method of the invention.
In step S140, average color is adjusted to reference to there are many methods near color value, for example, implementing at one
In example, the step of each average color is adjusted to new color value, may include:
According to expression formula: regulating degree=(average color-refers to color value) * preset ratio obtains regulating degree；
According to the difference of average color and regulating degree, new color value is obtained.
In another embodiment, the step of each average color being adjusted to new color value may include:
According to expression formula: regulating degree=(referring to color value-average color) * preset ratio obtains regulating degree；
According to average color and regulating degree and, obtain new color value.
Preset ratio is the adjusting ratio value of user's sets itself as needed, the degree for control and regulation.When average
When color value is more above or below reference color value, biggish preset ratio can be set, when average color is above or below reference
When color value is less, lesser preset ratio can be set.In order to guarantee the authenticity of photo, more people are arranged each pre- when taking a group photo
If ratio can not be identical.
In addition, preset ratio is generally higher than in order to ensure average color is adjusted toward with reference to the direction near color value
0.In order to ensure that the authenticity of photo, preset ratio are generally less than 1 as far as possible in the case where equilibrium, to avoid to average color
It is excessively adjusted, for example, the original average color lower than referring to color value is adjusted to the color value higher than reference color value, or each
A average color is both adjusted to reference to color value, or by original than adjusting with reference to the high average color of color value to lower than reference color value
Color value.
It should be noted that the method how present invention is not adjusted average color specifically makes restriction, user can be with
Other modes by each average color equilibrium are set as needed.For example, the feelings that more than two people group photo and two people can will take a group photo
Condition is respectively processed.When two people take a group photo, average color is A and B, and user can directly compare the big of A and B difference
It is small, in determining need to A and B progress equilibrium, regulating degree t is obtained according to (A-B) * q, then presses the flesh tone portion of A and B
Final result is obtained according to the form for the t that floats up and down, is i.e. is A-t after A adjusting, is B+t after B adjusting.Take a group photo more than for two people
When, a reference value is set, then needs are adjusted using any one method in above-mentioned two embodiment each average
Color value is adjusted.
Average color is adjusted using the method for above-mentioned regulating degree in addition, the present invention is not also limited.For example, user
Can be directly by average color directly multiplied by a numerical value, to adjusting the average color near reference color value, it can also be with
Average color is directly subtracted to the constant of a setting, to adjusting average color near reference color value.
Based on the same inventive concept, colour of skin regulating device when taking a group photo the present invention also provides a kind of more people, below with reference to attached
Figure is described in detail the specific embodiment of apparatus of the present invention.
As shown in Fig. 2, colour of skin regulating device when a kind of more people take a group photo, comprising:
Facial image obtains module 110, and the face in picture of finding a view when for image taking identifies, obtains face
Image；
Average color obtains module 120, and when being greater than 1 for the number in facial image, it is corresponding to obtain each facial image
The average color of the colour of skin；
With reference to color value determining module 130, color value is referred to for determining according to each average color；
Color value adjustment module 140, for each average color to be adjusted to new color value, wherein new color value and the reference
The absolute value of first difference of color value is less than the first preset threshold.
Facial image acquisition module 110 is known otherwise to face and average color obtains module 120 and filters out
Skin in facial image acquires the mode of average color, can be realized according to existing mode in the prior art.
It determines there are many kinds of the methods with reference to color value, for example, in one embodiment, it is described to refer to color value determining module
130 may include that the first reference color value determination unit 1301 or second refer to color value determination unit 1302；First reference
Color value determination unit 1301 is used to obtain the average value of each average color, using the average value of acquisition as with reference to color value；Described
Two are used to sequentially arrange each average color according to a certain size with reference to color value determination unit 1302, flat by being located in the middle after arrangement
Equal color value, which is used as, refers to color value.If be located in the middle there are two average colors after arrangement, can choose any in the two
One is used as with reference to color value, or the two is averaged, and obtained average value, which is used as, refers to color value, or the two are put down
Any one color value between equal color value is used as with reference to color value etc..In addition, in two people group photo, with reference to color value determining module 130
It can also arbitrarily select one of as with reference to color value.
In order to guarantee the authenticity of picture, and the rate of raising colour of skin equilibrium, it is also necessary to more each average color and ginseng
The difference degree of color value is examined, so, in one embodiment, as shown in figure 3, apparatus of the present invention can also be described including being connected to
Module 150 is obtained with reference to the second difference between color value determining module 130 and the color value adjustment module 140, described second is poor
Value obtains the absolute value that module 150 is used to obtain each average color Yu second difference with reference to color value.
The color value adjustment module 140 is more than or equal to the second preset threshold in the absolute value of the second difference and is less than or equal to third
When preset threshold, which is adjusted to new color value；The facial image obtains module 110 and exists
The absolute value of second difference is less than the second preset threshold or when being greater than third predetermined threshold value, again to image taking when find a view picture
Face in face is identified.Second preset threshold and third predetermined threshold value can need to be determined according to user.
Average color is adjusted to reference to there is many modes near color value, for example, in a reality by color value adjustment module 140
It applies in example, as shown in figure 4, the color value adjustment module 140 may include:
First regulating degree obtaining unit 1401, for according to expression formula: regulating degree=(average color-reference color
Value) * preset ratio, obtain regulating degree；
First color value adjusts unit 1402 and obtains new color value for the difference according to average color and regulating degree.
In another embodiment, as shown in figure 5, the color value adjustment module 140 may include:
Second regulating degree obtaining unit 1403, for according to expression formula: regulating degree=(refer to color value-average color
Value) * preset ratio, obtain regulating degree；
Second color value adjusts unit 1404, for according to average color and regulating degree and, obtain new color value.
Preset ratio is the adjusting ratio value of user's sets itself as needed.When average color is above or below reference color
When being worth more, biggish preset ratio can be set, when average color is less above or below reference color value, can be set compared with
Small preset ratio.In order to guarantee the authenticity of photo, each preset ratio that more people are arranged when taking a group photo can not be identical.Separately
Outside, in order to ensure average color is adjusted toward with reference to the direction near color value, preset ratio is generally higher than 0.In order to equal
Ensure that the authenticity of photo, preset ratio are generally less than 1 in the case where weighing apparatus as far as possible, to avoid excessively adjusting average color
Section.
It should be noted that the method how present invention is not adjusted average color specifically makes restriction, user can be with
Other modes by each average color equilibrium are set as needed.For example, the feelings that more than two people group photo and two people can will take a group photo
Condition is respectively processed.When two people take a group photo, average color is A and B, and user can directly compare the big of A and B difference
It is small, determining that color value adjustment module 140 obtains regulating degree t according to (A-B) * q, then by A when needing to carry out balanced to A and B
Final result is obtained according to the form for the t that floats up and down with the flesh tone portion of B, is i.e. is A-t after A adjusting, is B+t after B adjusting.When for
When more than two people taking a group photo, a reference value is set, then color value adjustment module 140 is using any in above-mentioned two embodiment
Each average color that a kind of method adjusts needs is adjusted.
Average color is adjusted using the method for above-mentioned regulating degree in addition, the present invention is not also limited.For example, color value
Adjustment module 140 can be directly by average color directly multiplied by a numerical value, to adjusting the average color to reference color value
Near, average color can also directly be subtracted to the constant of a setting, to adjusting average color near reference color value.
The present invention obtains the colour of skin average color of each facial image, according to each flat when detecting as more people group photo
Within a preset range whether equal color value, which determines, refers to color value, according to the difference of each average color and reference color value, judge whether
It needs that average color is adjusted, if necessary to adjust, then the average color is adjusted to reference to color value or with reference to color value
Near, so that colour of skin when realizing more people group photo is balanced, make the photo harmony and natural taken, it is more beautiful.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
- Colour of skin adjusting method when 1. a kind of more people take a group photo, which is characterized in that comprising steps ofThe face found a view in picture when to image taking identifies, obtains facial image；When the number of facial image is greater than 1, the average color of the corresponding colour of skin of each facial image is obtained；It is determined according to each average color and refers to color value；Each average color is adjusted to new color value, wherein the absolute value of new color value and first difference with reference to color value is small In the first preset threshold；It is wherein described to determine that referring to color value includes: the average color according to the corresponding colour of skin of each facial image according to each average color It is common to determine that refers to a color value, it is described to be used to the different corresponding each average colors of facial image being adjusted to institute with reference to color value It states with reference near color value or the reference color value.
- Colour of skin adjusting method when 2. more people according to claim 1 take a group photo, which is characterized in that true according to each average color Surely with reference to after color value, each average color is adjusted to before new color value, is further comprised the steps of:Obtain the absolute value of each average color Yu second difference with reference to color value；If the absolute value of the second difference is more than or equal to the second preset threshold and is less than or equal to third predetermined threshold value, into this is second poor It is worth the step of corresponding average color is adjusted to new color value, the face in picture of finding a view when otherwise returning to image taking carries out The step of identification, wherein the second preset threshold is more than or equal to the first preset threshold.
- Colour of skin adjusting method when 3. more people according to claim 1 take a group photo, which is characterized in that adjust each average color Include: to the step of new color valueAccording to expression formula: regulating degree=(average color-refers to color value) * preset ratio obtains regulating degree；According to the difference of average color and regulating degree, new color value is obtained.
- Colour of skin adjusting method when 4. more people according to claim 1 take a group photo, which is characterized in that adjust each average color Include: to the step of new color valueAccording to expression formula: regulating degree=(referring to color value-average color) * preset ratio obtains regulating degree；According to average color and regulating degree and, obtain new color value.
- Colour of skin adjusting method when 5. more people according to any one of claims 1 to 4 take a group photo, which is characterized in that according to Each average color is determined includes: with reference to the step of color valueThe average value for obtaining each average color, using the average value of acquisition as with reference to color value；Alternatively,Each average color is sequentially arranged according to a certain size, and average color will be located in the middle after arrangement as with reference to color value.
- Colour of skin regulating device when 6. a kind of more people take a group photo characterized by comprisingFacial image obtains module, and the face in picture of finding a view when for image taking identifies, obtains facial image；Average color obtains module, when being greater than 1 for the number in facial image, obtains the flat of the corresponding colour of skin of each facial image Equal color value；With reference to color value determining module, color value is referred to for determining according to each average color；Color value adjustment module, for each average color to be adjusted to new color value, wherein new color value and described with reference to color value The absolute value of first difference is less than the first preset threshold；It is wherein described to determine that referring to color value includes: the average color according to the corresponding colour of skin of each facial image according to each average color It is common to determine that refers to a color value, it is described to be used to the different corresponding each average colors of facial image being adjusted to institute with reference to color value It states with reference near color value or the reference color value.
- Colour of skin regulating device when 7. more people according to claim 6 take a group photo, which is characterized in that further include be connected to it is described Module is obtained with reference to the second difference between color value determining module and the color value adjustment module, second difference obtains module For obtaining the absolute value of each average color Yu second difference with reference to color value；The color value adjustment module is more than or equal to the second preset threshold in the absolute value of the second difference and is less than or equal to the default threshold of third When value, which is adjusted to new color value；The facial image obtains module in the second difference Absolute value less than the second preset threshold or when being greater than third predetermined threshold value, again to image taking when the people that finds a view in picture Face is identified.
- Colour of skin regulating device when 8. more people according to claim 6 take a group photo, which is characterized in that the color value adjustment module Include:First regulating degree obtaining unit, for according to expression formula: the regulating degree=default ratio of (average color-refers to color value) * Example obtains regulating degree；First color value adjusts unit and obtains new color value for the difference according to average color and regulating degree.
- Colour of skin regulating device when 9. more people according to claim 6 take a group photo, which is characterized in that the color value adjustment module Include:Second regulating degree obtaining unit, for according to expression formula: the regulating degree=default ratio of (referring to color value-average color) * Example obtains regulating degree；Second color value adjusts unit, for according to average color and regulating degree and, obtain new color value.
- 10. according to the colour of skin regulating device when group photo of more people described in claim 6 to 9 any one, which is characterized in that described It include that the first reference color value determination unit or second refer to color value determination unit with reference to color value determining module；First reference Color value determination unit is used to obtain the average value of each average color, using the average value of acquisition as with reference to color value；Second ginseng Color value determination unit is examined for sequentially arranging each average color according to a certain size, average color work will be located in the middle after arrangement For with reference to color value.
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| CN111226431B (en) * | 2017-10-11 | 2021-06-01 | 深圳传音通讯有限公司 | Photographing method and photographing system based on intelligent terminal |
| CN108257097A (en) * | 2017-12-29 | 2018-07-06 | 努比亚技术有限公司 | U.S. face effect method of adjustment, terminal and computer readable storage medium |
| CN108366194B (en) * | 2018-01-15 | 2021-03-05 | 维沃移动通信有限公司 | Photographing method and mobile terminal |
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| CN103413270A (en) * | 2013-08-15 | 2013-11-27 | 北京小米科技有限责任公司 | Method and device for image processing and terminal device |
| CN104751419A (en) * | 2015-03-05 | 2015-07-01 | 广东欧珀移动通信有限公司 | Picture display regulation method and terminal |
| CN104954690A (en) * | 2015-06-30 | 2015-09-30 | 厦门美图之家科技有限公司 | Image processing method and system for skin color adjustment and shooting terminal |
| CN104967776A (en) * | 2015-06-11 | 2015-10-07 | 广东欧珀移动通信有限公司 | Photographing setting method and user terminal |
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| CN103413270A (en) * | 2013-08-15 | 2013-11-27 | 北京小米科技有限责任公司 | Method and device for image processing and terminal device |
| CN104751419A (en) * | 2015-03-05 | 2015-07-01 | 广东欧珀移动通信有限公司 | Picture display regulation method and terminal |
| CN104967776A (en) * | 2015-06-11 | 2015-10-07 | 广东欧珀移动通信有限公司 | Photographing setting method and user terminal |
| CN104954690A (en) * | 2015-06-30 | 2015-09-30 | 厦门美图之家科技有限公司 | Image processing method and system for skin color adjustment and shooting terminal |
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