CN103151022A - Method for automatically changing font colors according to background color and system - Google Patents
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Abstract
The invention provides a method for automatically changing font colors according to a background color and a system. The method comprises the steps: taking a point adjacent to each font edge as a reference point in a background; obtaining color tones of colors of all the reference points; evaluating an average value of the color tones of the colors of all the reference points, and serving the average value as an average color tone of the background color; evaluating an inverse color tone of a color represented by the average color tone of the background color according to the average color tone of the background color; and setting color tones of the font colors as the inverse color tone of the color represented by the average color tone of the background color according to the inverse color tone of the color represented by the average color tone of the background color. Through the technical scheme, the color tones of the colors of the points adjacent to the font edges in the background are averaged, the average value serves as a color tone of the average color of the background, and then the inverse color value of the average value is evaluated, colors of fonts are set to be inverse colors, the colors of the fonts are properly matched with the background colors, and the fonts are easy to recognize.
Description
Technical field
The present invention relates to field of computer technology, relate in particular to a kind of method and system that automatically changes font color according to background color.
Background technology
Along with the development of infotech and electronic technology, digital product more and more is widely used in the every field of life and work, and mobile phone also becomes the requisite instrument of people.Generally, on mobile phone desktop, the font of displaying time is all the color of fixing, and the color of desktop wallpaper is according to user's hobby and change at any time.Therefore, when the color of the color of desktop wallpaper and displaying time near the time, it is inharmonious that colour match seems, and display effect is also bad, make font almost illegible under background, Fig. 3 is the screen display schematic diagram that uses the white background grey font, and Fig. 4 is the screen display schematic diagram that uses the black background grey font, as shown in Figure 3 and Figure 4.
At present, the method that automatically changes font color according to background color also belongs to technical matters just to be solved.
Summary of the invention
The invention provides a kind of method and system that automatically changes font color according to background color, at first the color colour of the point adjacent with the font edge in background extraction, after calculating, be the color of mating with the wallpaper background colour with the color settings of font, make the collocation of font color and background color proper, font is easy to identification.Described technical scheme is as follows:
A kind of method that automatically changes font color according to background color comprises:
In background, get the point adjacent with the font edge as a reference point;
Obtain the color colour of described all reference point;
Ask the mean value of the color colour of described all reference point, as a setting the average color of color;
According to the average color of described background color, ask the inverse colour of color of the average color representative of background color;
According to the inverse colour of the average color of described background color, the colour of font color is set as the inverse colour of color of the average color representative of described background color.
Further, ask the mean value of the color colour of described all reference point to comprise:
The front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color of color as a setting;
Two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color of color as a setting;
Two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color of color as a setting.
Further, ask the inverse colour of color of the average color representative of described background color to comprise:
Subtract the front two of the average color of described background color with sexadecimal number FF, the difference that obtains is as the front two of the inverse colour of the average color representative color of described background color;
Subtract two of the centres of the average color of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the inverse colour of the average color representative color of described background color;
Subtract two, the end of the average color of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the inverse colour of the average color representative color of described background color.
A kind of system that automatically changes font color according to background color comprises:
The reference point extraction module is used for extracting the point adjacent with the font edge in background as a reference point;
Colour obtains module, is used for obtaining the color colour of described all reference point;
The first computing module is for the mean value of the color colour of asking described all reference point, the average color of color as a setting;
The second computing module is used for the average color according to described background color, asks the inverse colour of color of the average color representative of described background color;
Control module is used for the inverse colour according to the average color of described background color, the colour of font color is set as the inverse colour of color of the average color representative of described background color.
Further, described the first computing module specifically is used for:
The front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color of color as a setting;
Two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color of color as a setting;
Two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color of color as a setting.
Further, described the second computing module specifically is used for:
Subtract the front two of the average color of described background color with sexadecimal number FF, the difference that obtains is as the front two of the inverse colour of the average color representative color of described background color;
Subtract two of the centres of the average color of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the inverse colour of the average color representative color of described background color;
Subtract two, the end of the average color of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the inverse colour of the average color representative color of described background color.
A kind of mobile terminal is characterized in that, described mobile terminal comprises arbitrary described system that automatically changes font color according to background color in claim 4-6.
Technical scheme provided by the invention, be averaging by the color colour to point adjacent with the font edge in background, average color colour and then the inverse colour of averaging as a setting are inverse with the color settings of font, make the collocation of font color and background color proper, font is easy to identification.
Description of drawings
Fig. 1 be the embodiment of the present invention provide automatically change the method flow diagram of font color according to background color;
Fig. 2 be the embodiment of the present invention provide automatically change the system function module block diagram of font color according to background color;
Fig. 3 is in prior art, uses the screen display schematic diagram of white background grey font;
Fig. 4 is in prior art, uses the screen display schematic diagram of black background grey font.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.Be understandable that, specific embodiment described herein only is used for explaining the present invention, but not limitation of the invention.
Embodiment
For a better understanding of the present invention, first introduce the background knowledge relevant with the present invention, paper RGB color mode, this color mode is a kind of color standard of industry member, by to red (R), green (G), variation and their stacks each other of blue (B) 3 Color Channels obtain color miscellaneous.RGB namely represents the color of 3 passages of red, green, blue, this standard almost comprised mankind's eyesights can perception all colours, be to use at present one of color system the most widely, the RGB color mode is applicable to watch on screen.
In the RGB color mode, color is mixed by red, green, blueness.Color is defined by a hexadecimal notation, and this symbol forms (RGB) by red, green and blue value.The minimum value of every kind of color is 0(sexadecimal: #00).Maximal value is 255(sexadecimal: #FF).The colour that can form color with these sexadecimal numbers.
Colour refers to certain color corresponding color value in different color modes.Aspect the demonstration of computer and mobile terminal, can use the colour of color to change background colour, textcolor and link color etc.In the RGB color mode, sexadecimal number with 6 represents colour, front two represents red value, the red component in this color of expression, number show that more greatly to contain redness more, and middle two represent green value, expression contains green component, two, end represents blue valve, and expression contains blue component, and each redness, green or blue valve can not have the sort of color at 00() to changing between FF (being the sort of color fully).Converting decimal number to as redness corresponding color colour in the RGB color mode is exactly 255,0,0(sexadecimal: #FF0000); It is exactly 0,255,0(sexadecimal that green corresponding color colour in the RGB color mode converts decimal number to: #00FF00); It is exactly 0,0,255(sexadecimal that blueness corresponding color colour in the RGB color mode converts decimal number to: #0000FF).
Fig. 1 be the embodiment of the present invention provide automatically change the method flow diagram of font color according to background color, as shown in Figure 1: a kind of method that automatically changes font color according to background color comprises:
Step 101: in background, get the point adjacent with the font edge as a reference point;
Generally, the color of background is not single, thus only have the color of the background adjacent with the font edge can have influence on contrast with font color, so in background, get the point adjacent with the font edge as a reference point.
Step 102: the color colour that obtains described all reference point;
Extract the colour of the color of all reference point.
Step 103: ask the mean value of the color colour of all reference point, as a setting the average color of color;
Step 1031: the front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color background average color colour of color as a setting;
In the RGB color mode, the colour front two of 6 sexadecimal numbers represents red value, and the red component in this color of expression can change between 00 to FF.Therefore, front two is extracted, and ask the mean value of the front two of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain red component.
Step 1032: two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color background average color colour of color as a setting;
In the RGB color mode, in the middle of the colour of 6 sexadecimal numbers, two represent green value, and expression contains green component, can change between 00 to FF.Two of centres are extracted, and ask the mean value of two of the centres of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain green component.
Step 1033: two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color background average color colour of color as a setting;
In the RGB color mode, two, the colour end of 6 sexadecimal numbers represents blue valve, and expression contains blue component, can change between 00 to FF.Two, end is extracted, and ask the mean value at two, the end of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain blue component.
Step 104: according to the average color of described background color, ask the inverse colour of the described background average color of color of the average color representative of background color;
Inverse is also referred to as complementary color, and two kinds of coloured light mix with proper proportion, produces the white sensation, and these two kinds of coloured light are complementary colors.When observing color, complementary color can be followed the appearance of mass-tone anywhere or anytime and produce, and this is relevant with degree of fatigue or illusion after photosensory cell on retina is subject to light stimulus.When people watched color attentively, the versicolor coloured light in visual range just stimulated the taper photosensory cell on retina, and produced the color of seeing; After but the taper photosensory cell on retina was subject to stimulating with a shade always, just having stimulated fatigue phenomenon to produce, and forms complementary color.We know that ambient color is one of factor of ectocrine body colour in addition, and ambient color is to object color, and topmost impact is the contrast phenomenon of ambient color and object color, causes the variation of object color.For example: carmetta and green is arranged side by side, can demonstrate carmine redder, green greener, this is because cause respectively its complementary color green and carmetta at carmetta and the green edge of handing-over each other, so strengthened the color of color out of the ordinary, produces redder, the green greener phenomenon of carmetta.Produce the opposite color opposite with self color form and aspect because color contrast makes each color around oneself, in fact this opposite color does not exist, and the generation of this phenomenon is the complementary color that visual illusion causes.The complementary color that the color of our font is set to background colour be exactly for the color contrast that makes background colour and font obvious.
We know that two kinds of coloured light mix with proper proportion, producing white is exactly complementary colors, and the colour of white is #FFFFFF, so from the angle of colour, after two addition was arranged respectively with the front two of two kinds of colors of complementation, middle sum-bit end, the colour that obtains was #FFFFFF.
Step 104 specifically comprises step 1041 ~ step 1043:
Step 1041: subtract the front two of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as the front two of the background average color inverse colour of the average color representative color of described background color;
Step 1042: subtract two of the centres of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the background average color inverse colour of the average color representative color of described background color;
Step 1043: subtract two, the end of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the background average color inverse colour of the average color representative color of described background color.
Step 105: according to the inverse colour of the average color background average color of described background color, the colour of font color is set as the inverse colour of color background average color of the average color representative of described background color.
Fig. 2 be the embodiment of the present invention provide automatically change the system function module block diagram of font color according to background color, as shown in Figure 2:
A kind of system that automatically changes font color according to background color comprises: reference point extraction module 201 is used for extracting the point adjacent with the font edge in background as a reference point; Colour obtains module 202, is used for obtaining the colour of reference point color; The first computing module 203 is for the mean value of asking all reference point color colours, the average color of color as a setting; The second computing module 204 is used for the average color according to described background color, asks the inverse colour of color of the average color look representative of background color; Control module 205 is used for the inverse colour according to the average color of described background color, the colour of font color is set as the inverse colour of color of the average color representative of described background color.
Wherein, the first computing module 203 specifically is used for:
The front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color background average color colour of color as a setting; In the RGB color mode, the colour front two of 6 sexadecimal numbers represents red value, and the red component in this color of expression can change between 00 to FF.Therefore, front two is extracted, and ask the mean value of the front two of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain red component.
Two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color background average color colour of color as a setting; In the RGB color mode, in the middle of the colour of 6 sexadecimal numbers, two represent green value, and expression contains green component, can change between 00 to FF.Two of centres are extracted, and ask the mean value of two of the centres of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain green component.
Two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color background average color colour of color as a setting.In the RGB color mode, two, the colour end of 6 sexadecimal numbers represents blue valve, and expression contains blue component, can change between 00 to FF.Two, end is extracted, and ask the mean value at two, the end of all reference point color colours, the result of trying to achieve is the mean value that all reference point contain blue component.
Wherein, the second computing module 204 specifically is used for:
Subtract the front two of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as the front two of the background average color inverse colour of the average color representative color of described background color;
Subtract two of the centres of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the background average color inverse colour of the average color representative color of described background color; Subtract two, the end of the average background average color colour of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the background average color inverse colour of the average color representative color of described background color.
Technical scheme provided by the invention, be averaging by the color colour to point adjacent with the font edge in background, average color colour and then the inverse colour of averaging as a setting are inverse with the color settings of font, make the collocation of font color and background color proper, font is easy to identification.
It is only below the explanation of doing for the preferred embodiments of the present invention and know-why thereof; and be not the restriction that technology contents of the present invention is carried out; anyly be familiar with those skilled in the art in technical scope disclosed in this invention; the variation of easily being expected or replacement all should be encompassed in protection scope of the present invention.
Claims (7)
1. a method that automatically changes font color according to background color, is characterized in that, comprising:
In background, get the point adjacent with the font edge as a reference point;
Obtain the color colour of described all reference point;
Ask the mean value of the color colour of described all reference point, as a setting the average color of color;
According to the average color of described background color, ask the inverse colour of color of the average color representative of background color;
According to the inverse colour of the average color of described background color, the colour of font color is set as the inverse colour of color of the average color representative of described background color.
2. method according to claim 1, is characterized in that, asks the mean value of the color colour of described all reference point to comprise:
The front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color of color as a setting;
Two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color of color as a setting;
Two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color of color as a setting.
3. method according to claim 1, is characterized in that, asks the inverse colour of color of the average color representative of described background color to comprise:
Subtract the front two of the average color of described background color with sexadecimal number FF, the difference that obtains is as the front two of the inverse colour of the average color representative color of described background color;
Subtract two of the centres of the average color of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the inverse colour of the average color representative color of described background color;
Subtract two, the end of the average color of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the inverse colour of the average color representative color of described background color.
4. a system that automatically changes font color according to background color, is characterized in that, comprising:
The reference point extraction module is used for extracting the point adjacent with the font edge in background as a reference point;
Colour obtains module, is used for obtaining the color colour of described all reference point;
The first computing module is for the mean value of the color colour of asking described all reference point, the average color of color as a setting;
The second computing module is used for the average color according to described background color, asks the inverse colour of color of the average color representative of described background color;
Control module is used for the inverse colour according to the average color of described background color, the colour of font color is set as the inverse colour of color of the average color representative of described background color.
5. system according to claim 4, is characterized in that, described the first computing module specifically is used for:
The front two of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value of the front two of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining front two of the average color of color as a setting;
Two of the centres of the color colour that will represent with six sexadecimal numbers are as a sexadecimal number, ask the mean value of two of the centres of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two of centres of the average color of color as a setting;
Two, the end of the color colour that will represent with six sexadecimal numbers is as a sexadecimal number, ask the mean value at two, the end of described all reference point color colours, and mean value is still represented with two sexadecimal numbers, with two sexadecimal numbers obtaining two, end of the average color of color as a setting.
6. system according to claim 4, is characterized in that, described the second computing module specifically is used for:
Subtract the front two of the average color of described background color with sexadecimal number FF, the difference that obtains is as the front two of the inverse colour of the average color representative color of described background color;
Subtract two of the centres of the average color of described background color with sexadecimal number FF, the difference that obtains is as two of the centres of the inverse colour of the average color representative color of described background color;
Subtract two, the end of the average color of described background color with sexadecimal number FF, the difference that obtains is as two, the end of the inverse colour of the average color representative color of described background color.
7. a mobile terminal, is characterized in that, described mobile terminal comprises arbitrary described system that automatically changes font color according to background color in claim 4-6.
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