CN106204690A - A kind of image processing method and device - Google Patents
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Abstract
The invention discloses a kind of image processing method and device, match colors in order to combine the color contrast of foreground image and background image, thus improve color matching effect.A kind of image processing method that the present invention provides, comprises determining that the foreground image in original image, and the body color of this foreground image；According to described body color, and the color matching rule for realizing foreground image and background image contrast display preset, obtain background color, and utilize this background color to obtain background image；By described foreground image and the described background image synthesis target image obtained.The color contrast that present invention incorporates foreground image and background image is matched colors, thus improves color matching effect.
Description
Technical field
The present invention relates to image technique field, particularly relate to a kind of image processing method and device.
Background technology
Display advertisement (display ads) on internet media has text advertisements and image ad (banner)
Two classes.Data analysis finds, the flow introduced by image ad and the flow phase introduced by text advertisements
Ratio, clicking rate (CTR, number of clicks and the ratio of exposure frequency) is higher, it is easier to attract user to pay close attention to.
In prior art, can be used for making the scheme of image ad, such as by prior art, to product figure
As carrying out scratching figure, and complete the making of image ad.The program is widely used in actual production.
But, color matching effect is poor.
Summary of the invention
Embodiments provide a kind of image processing method and device, in order to combine foreground image and background
The color contrast of image is matched colors, thus improves color matching effect.
A kind of image processing method that the embodiment of the present invention provides, including:
Determine the foreground image in original image, and the body color of this foreground image；
According to described body color, and preset for realizing foreground image and background image contrast display
Color matching rule, obtains background color, and utilizes this background color to obtain background image；
By described foreground image and the described background image synthesis target image obtained.
With it, the body color of the foreground image in original image can be utilized, and the use preset
Regular with the color matching of background image contrast display in realizing foreground image, obtain background color, and utilize this back of the body
Scape color obtains background image；By described foreground image and the described background image synthesis target image obtained.
Thus the color contrast combining foreground image and background image is matched colors, improve color matching effect, with
And Consumer's Experience effect, and then the clicking rate of the image related contents such as image ad can be improved.
Optionally it is determined that the foreground image in original image, and the body color of this foreground image, specifically
Including:
Determine the gray value of each pixel of original image；
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture；
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.
Alternatively, according to described body color, and being used for of presetting realizes foreground image and background image pair
Than the color matching rule of display, obtain background color, specifically include:
Utilize the lightness of body color, and the multiple lightness ranges preset, determine the lightness model of background color
Enclose, and select a lightness as the lightness of background color from the lightness range belonging to background color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma of body color, and the chroma angle preset, determine the chroma of background color；
Utilize the lightness of background color, saturation and chroma, determine background color.
Alternatively, utilize the lightness of body color, and the multiple lightness ranges preset, determine background color
Lightness range, including:
When the lightness of described body color belongs to the first default lightness range, determine the lightness of background color
Scope belongs to the second default lightness range；When the lightness of described body color belongs to the second default lightness model
When enclosing, determine that the lightness range of background color belongs to the first default lightness range；Wherein, described first bright
Degree scope is greater than or equal to described second lightness range.
Alternatively, utilize the saturation of body color, and the multiple saturation scopes preset, determine background
The saturation scope of color, including:
When the saturation of described body color belongs to the first default saturation scope, determine background color
Saturation scope belongs to the second default saturation scope；When the saturation of described body color belongs to default
During the second saturation scope, determine that the saturation scope of background color belongs to the first default saturation scope；
Wherein, described first saturation scope is greater than or equal to described second lightness range.
Alternatively, utilize the chroma of body color, and the chroma angle preset, determine the coloured silk of background color
Degree, including:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
Alternatively, the method also includes:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
Alternatively, described labelling includes: word, figure and/or symbol.
Alternatively, the described color determining this labelling, specifically include: determine saturation in described foreground image
The highest color, using this color as the color of this labelling.
A kind of image processing apparatus that the embodiment of the present invention provides, including:
First module, for determining the foreground image in original image, and the main body face of this foreground image
Color；
Second unit, for according to described body color, and being used for of presetting realizes foreground image and background
The color matching rule that image comparison shows, obtains background color, and utilizes this background color to obtain Background
Picture；
Unit the 3rd, for by described foreground image and the described background image synthesis target image obtained.
Alternatively, described first module specifically for:
Determine the gray value of each pixel of original image；
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture；
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.
Alternatively, second unit is according to described body color, and being used for of presetting realizes foreground image and the back of the body
The color matching rule that scape image comparison shows, when obtaining background color, specifically for:
Utilize the lightness of body color, and the multiple lightness ranges preset, determine the lightness model of background color
Enclose, and select a lightness as the lightness of background color from the lightness range belonging to background color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma of body color, and the chroma angle preset, determine the chroma of background color；
Utilize the lightness of background color, saturation and chroma, determine background color.
Alternatively, second unit utilizes the lightness of body color, and the multiple lightness ranges preset, and determines
During the lightness range of background color, specifically for:
When the lightness of described body color belongs to the first default lightness range, determine the lightness of background color
Scope belongs to the second default lightness range；When the lightness of described body color belongs to the second default lightness model
When enclosing, determine that the lightness range of background color belongs to the first default lightness range；Wherein, described first bright
Degree scope is greater than or equal to described second lightness range.
Alternatively, second unit utilizes the saturation of body color, and the multiple saturation scopes preset,
When determining the saturation scope of background color, specifically for:
When the saturation of described body color belongs to the first default saturation scope, determine background color
Saturation scope belongs to the second default saturation scope；When the saturation of described body color belongs to default
During the second saturation scope, determine that the saturation scope of background color belongs to the first default saturation scope；
Wherein, described first saturation scope is greater than or equal to described second lightness range.
Alternatively, second unit utilizes the chroma of body color, and the chroma angle preset, and determines background
During the chroma of color, specifically for:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
Alternatively, described Unit the 3rd is additionally operable to:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
Alternatively, described labelling includes: word, figure and/or symbol.
Alternatively, described first module is additionally operable to determine the color that in described foreground image, saturation is the highest, will
This color is as the color of described labelling, and is sent to described Unit the 3rd.
Accompanying drawing explanation
The schematic flow sheet of a kind of image processing method that Fig. 1 provides for the embodiment of the present invention；
The method flow signal of a kind of body color determining foreground image that Fig. 2 provides for the embodiment of the present invention
Figure；
The grey level histogram signal of the body color of a kind of foreground image that Fig. 3 provides for the embodiment of the present invention
Figure；
A kind of HSV space schematic diagram that Fig. 4 provides for the embodiment of the present invention；
The structural representation of a kind of image processing apparatus that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Embodiments provide a kind of image processing method and device, in order to combine foreground image and background
The color contrast of image is matched colors, thus improves color matching effect.
The embodiment of the present invention proposes a kind of scheme that can be subject image and carry out Automatic color matching, and the program is defeated
Enter the original image for object, shown that by statistics the body color of this object is distributed, give according to body color
Go out the schemes such as background color matching, word color matching.
See Fig. 1, a kind of image processing method that the embodiment of the present invention provides, including step:
S101, the foreground image determined in original image, and the body color of this foreground image；
Wherein, described foreground image, i.e. original image go out the image of object of background itself.
The primary color of the body color of described foreground image, i.e. object.
S102, according to described body color, and being used for of presetting realizes foreground image and contrasts with background image
The color matching rule of display, obtains background color, and utilizes this background color to obtain background image；
The color matching rule for realizing foreground image and background image contrast display preset, i.e. according to main body face
The concrete value of the various eigenvalues of color, it is contemplated that the contrast of color matching, pre-sets the phase of some color matchings
The rules such as the span answering eigenvalue, rear extended meeting is described in detail in conjunction with specific embodiments.
S103, by described foreground image and described obtain background image synthesis target image.
With it, the body color of the foreground image in original image can be utilized, and the use preset
Regular with the color matching of background image contrast display in realizing foreground image, obtain background color, and utilize this back of the body
Scape color obtains background image；By described foreground image and the described background image synthesis target image obtained.
Thus the color contrast combining foreground image and background image is matched colors, improve color matching effect, with
And Consumer's Experience effect, and then the clicking rate of the image related contents such as image ad can be improved.
Optionally it is determined that the foreground image in original image, and the body color of this foreground image, specifically
Including:
Determine the gray value of each pixel of original image.Specifically, each pixel can first be calculated
The value of RGB of point, calculates the gray value of this pixel according further to the value of RGB.
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture.Specifically, prior art can be used according to the gray value of each pixel, remove in original image
Background colour, thus obtain foreground image.
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.Specifically, the histogram distribution of the gray value of foreground image can be passed through,
Get the body color of foreground image.
For example, with reference to Fig. 2, step S101 specifically includes following steps:
S201, acquisition original image, and open original image.
S202, original image is converted into rgb format, to facilitate point processing, i.e. determines in original image
The value of the RGB of each pixel.
S203, the RGB value of foundation pixel, calculate the gray value of each pixel.
Wherein, the gray value calculating pixel is prior art, such as, for each pixel, according to public
Formula: gray value=(3*R+6*G+B)/10, wherein, R, G, B represent this pixel respectively
Red (R), green (G), blue (B) value.
Gray scale uses black tone to represent object.Each gray scale object has from 0% (white) (black to 100%
Color) brightness value.The image using black and white or gray scale scanning instrument to generate generally shows with gray scale.Use gray scale
Also colored picture proof can be converted to high-quality black and white picture proof.The edge of image is the most basic feature of image.
Because human eye is to the perception of RGB color and differs, so needing the when of conversion to give different power
Weight.For physiology and Psychological Angle, human eye is more sensitive to green, causes green to have human eye
Fluorescence, the most therefore, calculating gray value when, green weight ratio is bigger.Such as in above formula G
Weights 6 bigger.
In S204, foundation original image, the gray value of all pixels, removes the background colour of original image,
The image of the foreground image in original image, i.e. object itself.
In embodiments of the present invention, the background colour of image is removed according to gray value.Referring specifically to Fig. 3, former
The grey level histogram of beginning image shows, has a peak value between 0～100, and this peak color is relatively deep, most
In the case of be the color of foreground image, between 200～225, have a peak value, the color that this peak value represents is relatively
Shallow, it is in most cases the background color of original image.Can be by before in original image by this rectangular histogram
The chromatic zones of the color and background image of scape image separates, thus takes out background colour, determines foreground image.
The window change of gray scale of the prior art is common a kind of point processing.See Fig. 3, bimodal between
The lowest point be T, when this original image is carried out window transform, window upper limit can be with value as T, lower limit
It is 0, the result after conversion, i.e. can eliminate background colour.
S205, obtain the histogram distribution of the gray value of foreground image, such that it is able to get in foreground image
Primary color, i.e. the body color of foreground image.
Alternatively, when needs are for labellings such as image configurations words, the color of this labelling is also predefined.
Specifically, can obtain the colour that in foreground image, saturation is the highest, the body color of foreground image is
Refer to the most color having on product, and the acquisition methods of the highest colour of saturation is first by foreground image
The colour that represents of the RGB of each pixel be converted into HSV (H: form and aspect, S: saturation, V: lightness)
The colour (conversion regime is prior art) represented, then travels through all pixels of foreground image, finds S
It is worth the highest point.Illustrate: the product of a black has one little for redness, then the main body of product
Color is black, and the highest colour of saturation is red.
It is described below about the mutually conversion between RGB and HSV:
HSV model is generally used in Computer Image Processing application.A color must be selected to answer user
In the various applied environment of particular image element, commonly used HSV colour wheel.Wherein, tone represents
For annulus, it is possible to use an independent triangle represents saturation and lightness.Typically, this triangle
The vertical axis instruction saturation of shape, and trunnion axis represents lightness.In this manner, selection color can be first
In annulus, first select tone, then from triangle, select saturation and the lightness wanted.
The another kind of visual method seeing Fig. 4, HSV model is cone.In this expression, tone quilt
Being expressed as the angle around circular cone central shaft, saturation is represented as the center of circle of the cross section from circular cone to this point
Distance, lightness is represented as the center of circle distance to summit of the cross section from circular cone.
Except mode indicated above, prior art also uses hexagonal pyramid body and is indicated.This method is more
It is suitable in a single object, show this HSV color space；But due to its three-dimensional nature, it
Be not suitable for selecting color in two-dimension computer interface.
HSV color space feels the mode of color closer to the mankind, and scheme of colour is more directly perceived.And RGB
It it is the convenient computer disposal of additive primaries model.
One, rgb value is converted to HSV value
For the rgb value of each pixel, (r, g, b), if should (r, g b) be the color of a pixel respectively
Red, green and blue coordinate, their value is the real number between 0 to 1.If max equal to r, g and
The maximum in b.If min is equal to the reckling in these values.Find in HSV space corresponding
(h, s, v) value, h ∈ here [0,360) be the hue angle of angle, and s, v ∈ [0,1] are full
With degree and lightness, equation below is used to calculate:
Wherein, the value of h is generally standardized between 0 to 360 °.And h=0 is for max=
When (being exactly Lycoperdon polymorphum Vitt) of min rather than stay h undefined.
υ=max
Thus obtain the HSV value of this pixel.
Two, it is transformed into rgb value from HSV value.
For in HSV space (h, s, v) value definition a color give a picture represented with HSV
Vegetarian refreshments, with h as above, and represent respectively s and v of saturation and lightness change in 0 to 1 it
Between, corresponding in rgb space (r, g, b) three primary colors may be calculated:
P=υ × (1-s)
Q=υ × (1-f × s)
T=υ × (1-(1-f) × s)
Wherein, the intermediate variable during p, q, t represent calculating respectively.
For the pixel of each color rgb value (r, g, b):
It is hereby achieved that the rgb value that the HSV value of any pixel point is corresponding.
Alternatively, according to described body color, and being used for of presetting realizes foreground image and background image pair
Than the color matching rule of display, obtain background color, specifically include:
Utilize the lightness (being properly termed as brightness) of body color, and the multiple lightness ranges preset, determine
The lightness range of background color, and select a lightness as background face from the lightness range belonging to background color
The lightness of color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma (being properly termed as tone) of body color, and the chroma angle preset, determine background
The chroma of color；
Utilize the lightness of background color, saturation and chroma, determine background color.
Wherein, the body color of foreground image is transformed into HSV space by rgb space, will each
The RGB value of pixel is converted into HSV value.In HSV space, body color can be got
Lightness, saturation and chroma.
Alternatively, utilize the lightness of body color, and the multiple lightness ranges preset, determine background color
Lightness range, including:
When the lightness of described body color belongs to default the first lightness range (such as, [0.5,1]), really
Determine the second lightness range (such as, [0,0.5]) that the lightness range of background color belongs to default；As described master
When the lightness of body color belongs to the second default lightness range, determine that the lightness range of background color belongs to default
The first lightness range；Wherein, described first lightness range is greater than or equal to described second lightness range.Its
It is meant that: the color that colour match lightness that lightness is high is low, the color that colour match lightness that lightness is low is high.
Alternatively, utilize the saturation of body color, and the multiple saturation scopes preset, determine background
The saturation scope of color, including:
When the saturation of described body color belongs to default the first saturation scope (such as, [0.5,1]),
Determine that the saturation scope of background color belongs to default the second saturation scope (such as, [0,0.5])；When
When the saturation of described body color belongs to the second default saturation scope, determine the saturation of background color
Scope belongs to the first default saturation scope；Wherein, described first saturation scope is greater than or equal to described
Second lightness range.It is meant that: the color that saturate colour match saturation is low, saturation is low
The saturate color of colour match.
Alternatively, utilize the chroma of body color, and the chroma angle preset, determine the coloured silk of background color
Degree, including:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
Wherein, the first chroma scope and the second chroma scope, relative set can be carried out according to actual needs,
Such as can obtain corresponding scope by emulation, determine the chroma in the range of which by emulation, be suitable for adopting
Matching colors by close chroma, the chroma in the range of which chroma is suitable for using the chroma that contrast is high to carry out
Color matching.The first described chroma scope and the second chroma scope are not limited by the embodiment of the present invention.When
So, do not use the first chroma scope and the second chroma scope can also realize color matching equally, pre-for example with one
If fixing chroma angle be added with the chroma of body color, using that obtain and value as the chroma of background color
Also possible.
The span of tone (namely H) be [0,360), in actual applications, can produce according to different industries
Product choose the color matching of different tone, such as: choose 30 ° for close color matching, will the chroma of theme colors add
The first chroma angle of 30 ° obtains the chroma of background color；Choose 180 ° to match colors for contrast, will theme
The chroma of color adds that the second chroma angle of 180 ° obtains the chroma etc. of background color.
Furthermore it is also possible to the color that in employing body color, saturation is the highest is matched colors as word.Saturation ratio
Higher color, easily produces contrast with background colour, and the most saturate color occurs in foreground image
Crossing, such text color and foreground image can echo, and the purpose so processed is easily to make the marks such as word
Note and foreground image more attract user to pay close attention to.
Therefore, alternatively, the method also includes:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
Alternatively, described labelling includes: word, figure and/or symbol.
Alternatively, the described color determining this labelling, specifically include: determine saturation in described foreground image
The highest color, using this color as the color of this labelling.
In the embodiment of the present invention, in linux operating system, the scheme realized with python language can reach
Optimal implementation result.
With said method accordingly, see Fig. 5, a kind of image processing apparatus that the embodiment of the present invention provides,
Including:
First module 11, for determining the foreground image in original image, and the main body face of this foreground image
Color；
Second unit 12, for according to described body color, and being used for of presetting realizes foreground image and the back of the body
The color matching rule that scape image comparison shows, obtains background color, and utilizes this background color to obtain Background
Picture；
3rd unit 13, for by described foreground image and the described background image synthesis target image obtained.
Alternatively, described first module specifically for:
Determine the gray value of each pixel of original image；
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture；
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.
Alternatively, second unit is according to described body color, and being used for of presetting realizes foreground image and the back of the body
The color matching rule that scape image comparison shows, when obtaining background color, specifically for:
Utilize the lightness of body color, and the multiple lightness ranges preset, determine the lightness model of background color
Enclose, and select a lightness as the lightness of background color from the lightness range belonging to background color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma of body color, and the chroma angle preset, determine the chroma of background color；
Utilize the lightness of background color, saturation and chroma, determine background color.
Alternatively, second unit utilizes the lightness of body color, and the multiple lightness ranges preset, and determines
During the lightness range of background color, specifically for:
When the lightness of described body color belongs to the first default lightness range, determine the lightness of background color
Scope belongs to the second default lightness range；When the lightness of described body color belongs to the second default lightness model
When enclosing, determine that the lightness range of background color belongs to the first default lightness range；Wherein, described first bright
Degree scope is greater than or equal to described second lightness range.
Alternatively, second unit utilizes the saturation of body color, and the multiple saturation scopes preset,
When determining the saturation scope of background color, specifically for:
When the saturation of described body color belongs to the first default saturation scope, determine background color
Saturation scope belongs to the second default saturation scope；When the saturation of described body color belongs to default
During the second saturation scope, determine that the saturation scope of background color belongs to the first default saturation scope；
Wherein, described first saturation scope is greater than or equal to described second lightness range.
Alternatively, second unit utilizes the chroma of body color, and the chroma angle preset, and determines background
During the chroma of color, specifically for:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
Alternatively, described Unit the 3rd is additionally operable to:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
Alternatively, described labelling includes: word, figure and/or symbol.
Alternatively, described first module is additionally operable to determine the color that in described foreground image, saturation is the highest, will
This color is as the color of described labelling, and is sent to described Unit the 3rd.
Above unit, all can be realized by entity apparatus such as processors.
In sum, the embodiment of the present invention proposes a kind of image Automatic color matching side based on Color Psychology
Case, can apply to image ad manufacturing process, and the program is applicable to the making of all image ads, has
Versatility.Make automatically to make the scheme of colour during image intention (banner) and be no longer necessary to the completeest
Become, computer can be given and automatically provided scheme of colour by algorithm.And it is possible to according to subject image
Body color, provides more particularly suitable scheme of colour from Color Psychology angle.The embodiment of the present invention is being carried out
Image procossing storehouse (Python Image Library, PIL) can be used during image procossing, or based on (opening
Source) cross-platform computer vision library (Open Source Computer Vision Library, OpenCV) issued
Etc. prior art, scheme of colour have employed HSV color space, it is of course also possible to employing tone (H),
Saturation (S), brightness (L) (being called for short HSL) color space etc.；It addition, the embodiment of the present invention is in color matching
In scheme, Main Basis tone, saturation, lightness are matched colors, it is also possible to pass through according to product type etc.
Machine learning provides other scheme of colour.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to disk memory and
Optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding
The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set
In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory
Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart
The function specified in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes
Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices
Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one
The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (18)
1. an image processing method, it is characterised in that the method includes:
Determine the foreground image in original image, and the body color of this foreground image；
According to described body color, and preset for realizing foreground image and background image contrast display
Color matching rule, obtains background color, and utilizes this background color to obtain background image；
By described foreground image and the described background image synthesis target image obtained.
Method the most according to claim 1, it is characterised in that determine the foreground picture in original image
Picture, and the body color of this foreground image, specifically include:
Determine the gray value of each pixel of original image；
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture；
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.
Method the most according to claim 1, it is characterised in that according to described body color, and
The color matching rule for realizing foreground image and background image contrast display preset, obtains background color, tool
Body includes:
Utilize the lightness of body color, and the multiple lightness ranges preset, determine the lightness model of background color
Enclose, and select a lightness as the lightness of background color from the lightness range belonging to background color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma of body color, and the chroma angle preset, determine the chroma of background color；
Utilize the lightness of background color, saturation and chroma, determine background color.
Method the most according to claim 3, it is characterised in that utilize the lightness of body color, with
And the multiple lightness ranges preset, determine the lightness range of background color, including:
When the lightness of described body color belongs to the first default lightness range, determine the lightness of background color
Scope belongs to the second default lightness range；When the lightness of described body color belongs to the second default lightness model
When enclosing, determine that the lightness range of background color belongs to the first default lightness range；Wherein, described first bright
Degree scope is greater than or equal to described second lightness range.
Method the most according to claim 3, it is characterised in that utilize the saturation of body color,
And the multiple saturation scopes preset, determine the saturation scope of background color, including:
When the saturation of described body color belongs to the first default saturation scope, determine background color
Saturation scope belongs to the second default saturation scope；When the saturation of described body color belongs to default
During the second saturation scope, determine that the saturation scope of background color belongs to the first default saturation scope；
Wherein, described first saturation scope is greater than or equal to described second lightness range.
Method the most according to claim 3, it is characterised in that utilize the chroma of body color, with
And the chroma angle preset, determine the chroma of background color, including:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
Method the most according to claim 1, it is characterised in that the method also includes:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
Method the most according to claim 7, it is characterised in that described labelling includes: word, figure
Shape and/or symbol.
Method the most according to claim 7, it is characterised in that the described color determining this labelling,
Specifically include: determine the color that in described foreground image, saturation is the highest, using this color as the face of this labelling
Color.
10. an image processing apparatus, it is characterised in that this device includes:
First module, for determining the foreground image in original image, and the main body face of this foreground image
Color；
Second unit, for according to described body color, and being used for of presetting realizes foreground image and background
The color matching rule that image comparison shows, obtains background color, and utilizes this background color to obtain Background
Picture；
Unit the 3rd, for by described foreground image and the described background image synthesis target image obtained.
11. devices according to claim 10, it is characterised in that described first module specifically for:
Determine the gray value of each pixel of original image；
The gray value of each pixel according to described original image, determines the foreground picture in described original image
Picture；
Determine the rectangular histogram of the gray value of foreground image in described original image, and utilize this rectangular histogram to determine
The body color of this foreground image.
12. devices according to claim 10, it is characterised in that second unit is according to described main body
Color, and the color matching rule for realizing foreground image and background image contrast display preset, carried on the back
During scape color, specifically for:
Utilize the lightness of body color, and the multiple lightness ranges preset, determine the lightness model of background color
Enclose, and select a lightness as the lightness of background color from the lightness range belonging to background color；And/or,
Utilize the saturation of body color, and the multiple saturation scopes preset, determine the full of background color
With degree scope, and from the saturation scope belonging to background color, select full as background color of a saturation
And degree；And/or,
Utilize the chroma of body color, and the chroma angle preset, determine the chroma of background color；
Utilize the lightness of background color, saturation and chroma, determine background color.
13. devices according to claim 12, it is characterised in that second unit utilizes body color
Lightness, and preset multiple lightness ranges, when determining the lightness range of background color, specifically for:
When the lightness of described body color belongs to the first default lightness range, determine the lightness of background color
Scope belongs to the second default lightness range；When the lightness of described body color belongs to the second default lightness model
When enclosing, determine that the lightness range of background color belongs to the first default lightness range；Wherein, described first bright
Degree scope is greater than or equal to described second lightness range.
14. devices according to claim 12, it is characterised in that second unit utilizes body color
Saturation, and preset multiple saturation scopes, when determining the saturation scope of background color, specifically
For:
When the saturation of described body color belongs to the first default saturation scope, determine background color
Saturation scope belongs to the second default saturation scope；When the saturation of described body color belongs to default
During the second saturation scope, determine that the saturation scope of background color belongs to the first default saturation scope；
Wherein, described first saturation scope is greater than or equal to described second lightness range.
15. devices according to claim 12, it is characterised in that second unit utilizes body color
Chroma, and preset chroma angle, when determining the chroma of background color, specifically for:
When the chroma of described body color belongs to the first default chroma scope, use the first chroma preset
The chroma of angle and described body color determines the chroma of background color；When the chroma of described body color belongs to
When the second default chroma scope, use the second chroma angle and the chroma of described body color preset
Determine the chroma of background color；Wherein, described first chroma angle is less than described second chroma angle.
16. devices according to claim 10, it is characterised in that described Unit the 3rd is additionally operable to:
Determine and need the labelling of interpolation in described target image, and determine the color of this labelling, use this face
This labelling is added in described target image by color.
17. devices according to claim 16, it is characterised in that described labelling includes: word,
Figure and/or symbol.
18. devices according to claim 16, it is characterised in that described first module is additionally operable to really
The color that in fixed described foreground image, saturation is the highest, using this color as the color of described labelling, and sends
To described Unit the 3rd.
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| CN108416826A (en) * | 2018-02-07 | 2018-08-17 | 李荣陆 | A kind of planar design Automatic color matching device |
| CN109345612A (en) * | 2018-09-13 | 2019-02-15 | 腾讯数码（天津）有限公司 | A kind of image generating method, device, equipment and storage medium |
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| CN112069340A (en) * | 2020-09-04 | 2020-12-11 | 北京字节跳动网络技术有限公司 | Background picture processing and search result display method, device, equipment and medium |
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