WO2019006892A1 - Palette, procédé de rendu de deux couleurs, procédé d'acquisition de couleurs, support d'informations lisible et ordinateur - Google Patents

Palette, procédé de rendu de deux couleurs, procédé d'acquisition de couleurs, support d'informations lisible et ordinateur Download PDF

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Publication number
WO2019006892A1
WO2019006892A1 PCT/CN2017/103772 CN2017103772W WO2019006892A1 WO 2019006892 A1 WO2019006892 A1 WO 2019006892A1 CN 2017103772 W CN2017103772 W CN 2017103772W WO 2019006892 A1 WO2019006892 A1 WO 2019006892A1
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Prior art keywords
color
block
position point
increment
current position
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PCT/CN2017/103772
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English (en)
Chinese (zh)
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李幸斌
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2019006892A1 publication Critical patent/WO2019006892A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros

Definitions

  • the present invention relates to the field of color processing, and in particular to a color wheel, a two-color rendering method, a color picking method, a readable storage medium, and a computer.
  • the color picking of terminal devices such as computers, tablets, etc.
  • the color picking of terminal devices generally controls the color change of the display screen by selecting the color on the color wheel.
  • a variety of colors are preset on the existing color palette, and the user only needs to select one of the colors on the color palette.
  • the existing color palettes exhibit limited color, and generally require the user to adjust the R, G, B values or H, S, L values to change the color.
  • R, G, B values or H, S, and L values of the color it is necessary to try multiple times to get the desired color.
  • the color adjustment method is single and it is not possible to quickly obtain the desired color.
  • the present invention provides a two-color rendering method for a color wheel, wherein the color wheel is provided with a color grading block, and the two-color rendering method includes:
  • a circle is drawn with the current position point where the color block is located as a circle, a circular area is formed, and the circular area is filled with a target color corresponding to the current position point.
  • the above two-color rendering method wherein the calculating is performed according to a position increment of the toner patch movement
  • the step of increasing the color of the first color to the second color to obtain the target color corresponding to each position point of the moving block of the moving block includes:
  • r, g, and b are the R, G, and B values of the color corresponding to the current position point
  • r 1 , g 1 , and b 1 are the R, G, and B values of the first color
  • r 2 , g 2 and b 2 are respectively R, G, and B values of the second color
  • ⁇ r, ⁇ g, and ⁇ b are the R, G, and B difference values, respectively
  • ⁇ d is the toner block from the initial position.
  • the position increment when moving to the current position point, and D is the preset position increment.
  • the above-mentioned two-color rendering method after the step of filling the circular area with the target color corresponding to the current position point, the method further includes:
  • the above two-color rendering method wherein the color palette is rotated around the origin of the color wheel when moving, and the step of calculating the position increment when the color block is moved from the initial position to the current position includes:
  • the angle between adjacent vectors between the initial position and the current position point is cumulatively calculated to obtain a position increment when the toner patch moves from the initial position to the current position point.
  • the above-described two-color rendering method wherein the step of forming a circle with the current position point where the color block is located as a center, forming a circular area, and filling the circular area with a target color corresponding to the current position point includes :
  • a circle is drawn with the current position point as a center, a circular area is formed, and a circular area corresponding to the current position point is filled with the target color.
  • the present invention also provides a color picking method, wherein the application to the color wheel includes:
  • the color of the circular area of the position point corresponding to the coordinates on the color wheel is selected.
  • the present invention also provides a color wheel having a color block provided thereon, the color wheel comprising:
  • a color obtaining module configured to acquire a first color corresponding to the initial position of the color patch at the initial position of the color wheel and acquire a second color selected by the user when the color block is moving forward on the color wheel ;
  • a calculation module configured to traverse each position point of the movement trajectory of the color block, and calculate a color increment of the first color to the second color change according to a position increment of the color block movement, Obtaining a target color corresponding to each position point of the moving block of the moving trajectory;
  • the first filling module draws a circle with the current position point of the color block as a circle, forms a circular area, and fills the circular area with a target color corresponding to the current position point.
  • calculation block comprises:
  • a first calculation sub-module configured to calculate a difference between the R, G, and B values of the first color and the R, G, and B values of the second color to obtain a difference value of R, G, and B;
  • a second calculation submodule configured to calculate the color block to move from the initial position to a current position Position increment
  • a third calculating submodule configured to calculate a ratio of the position increment and the preset position increment, and calculate R, G, and B values of the target color according to the ratio and the R, G, and B difference values.
  • r, g, and b are the R, G, and B values of the color corresponding to the current position point
  • r 1 , g 1 , and b 1 are the R, G, and B values of the first color
  • r 2 , g 2 and b 2 are respectively R, G, and B values of the second color
  • ⁇ r, ⁇ g, and ⁇ b are the R, G, and B difference values, respectively
  • ⁇ d is the toner block from the initial position.
  • the position increment when moving to the current position point, and D is the preset position increment.
  • the above color wheel also includes:
  • a second filling module configured to determine a color corresponding to a position point of the color grading block on the moving trajectory when the color grading block is reversely moved, and fill the color grading block with the corresponding color The position of the point corresponds to the circular area.
  • the second calculation sub-module includes:
  • a coordinate acquisition module configured to acquire coordinates of each position point of the movement trajectory of the color grading block, and obtain a vector of coordinates of the origin point to each position point of the movement trajectory;
  • the angle calculation module is configured to cumulatively calculate an angle between adjacent positions between the initial position and the current position point to obtain a position increment when the color block moves from the initial position to the current position point.
  • the above color wheel also includes:
  • a signal acquisition module configured to determine a coordinate of a click position when a click signal is acquired, and Moving the color block to a position corresponding to the coordinate on the color wheel;
  • a color selection module configured to select a color of a circular area of the position point corresponding to the coordinate on the color wheel.
  • the present invention also provides a readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the above method.
  • the present invention also provides a computer comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program to implement the steps of the method.
  • the user may use the color of the circular area of any position point where the color block is located as the first color, and obtain the user selected color as the second color, and control the color of the color wheel by moving the color adjustment block. It varies between the first color and the second color. It is convenient for the user to debug the color by himself, get a color-changing color palette, and quickly get the desired color.
  • FIG. 1 is a flowchart of a two-color rendering method in a first embodiment of the present invention
  • FIG. 2 is a flowchart of a two-color rendering method in a second embodiment of the present invention.
  • FIG. 3 is a flowchart of a two-color rendering method in a third embodiment of the present invention.
  • FIG. 4 is a flow chart of a color picking method in a fourth embodiment of the present invention.
  • Figure 5 is a block diagram showing the structure of a color wheel in a fifth embodiment of the present invention.
  • FIG. 6 is a structural block diagram of the calculation module of FIG. 5.
  • 1 is a two-color rendering method of a color wheel in a first embodiment of the present invention, comprising steps S11-S13, wherein the color wheel is provided with a color block, and the color block can be moved on the color wheel.
  • the user can drag the color block by dragging the mouse or touching the display screen.
  • Step S11 When the color block is moving forward on the color wheel, acquire a first color corresponding to the initial position of the color block and obtain a second color selected by the user.
  • the first color is a color corresponding to the starting position point when the toner patch moves on the color wheel.
  • a plurality of standard colors may be preset on the color wheel, and the user selects one of the colors as the second color by a mouse or a touch.
  • Step S12 traversing each position point of the movement trajectory of the color block, calculating a color increment of the first color to the second color change according to the position increment of the color block movement, to obtain a The target color corresponding to each position point of the moving track is described.
  • the color increment of the color change of the first color to the second color is calculated according to the position increment of the color block movement, and the color increment is the degree of color change.
  • the position increment when the movement trajectory of the toner patch is completely changed from the first color color to the color gradation of the second color is D
  • the position increment corresponding to the current position point according to the movement trajectory of the toner patch and D The ratio calculates a color increment of the color change of the first color to the second color to obtain a target color corresponding to the current position point.
  • Step S13 drawing a circle with the current position point where the color block is located as a center, forming a circular area, and filling the circular area with a target color corresponding to the current position point.
  • a circle is drawn with the current position point as a circle, and a circular area is formed, and the target color corresponding to the current position point is filled in the circular area where the current position point is a center.
  • the moving trajectory of the color grading block can be rendered as a color gradation from the first color to the second color. Thereby, the color between the first color and the second color is obtained from the rendered color wheel.
  • the user may use the color of the circular area of any position point where the color block is located as the first color, and obtain the color selected by the user as the second color, and control the color of the color wheel by moving the color adjustment block. It varies between the first color and the second color. It is convenient for users to debug colors and get colors Change the colorful color palette.
  • the two-color rendering method of the color wheel includes steps S21 to S25.
  • Step S21 when the color block is moving forward on the color wheel, acquire a first color corresponding to the initial position of the color block and obtain a second color selected by the user.
  • Step S22 calculating a difference between the R, G, and B values of the first color and the R, G, and B values of the second color, respectively, to obtain R, G, and B difference values.
  • the first color is a color displayed by the corresponding circular area when the toning block is in an initial position of its movement trajectory.
  • the calculation formulas for the R, G, and B delta values ⁇ r, ⁇ g, and ⁇ b are as follows:
  • r 1 , g 1 , and b 1 are R, G, and B values of the first color, respectively, and r 2 , g 2 , and b 2 are R, G, and B values of the second color, respectively.
  • Step S23 traversing each position point of the movement trajectory of the color grading block, and calculating a position increment when the color grading block moves from the initial position to the current position point.
  • the formed moving track includes a plurality of uniformly arranged position points, and each time the color block moves to a position point, the color block is calculated to move from the initial position to The position increment of the current position of the color wheel.
  • Step S24 calculating a ratio of the position increment and the preset position increment, and calculating R, G, and B of the target color corresponding to the current position point according to the ratio and the R, G, and B difference values. value.
  • Step S25 drawing a circle with the current position point as a center, forming a circular area, and filling the circular area with a target color corresponding to the current position point.
  • the R, G, and B values of the target color are calculated according to the ratio and the R, G, and B difference values, and the R, G, and B values of the target color change with the position point at r 1 , g 1 , b 1 and r 2 , g 2 , b 2 vary.
  • a circle is drawn with the current position point of the color block as a center, and the target color is filled in the corresponding circular area, that is, a circular color area rendered with the target color is obtained.
  • a circular area corresponding to one position point of the toner patch moving track is rendered, and a color area which is gradually changed from the first color to the second color is obtained.
  • r, g, and b are R, G, and B values of the target color, respectively, and r 1 , g 1 , and b 1 are R, G, and B values of the first color, respectively, r 2 , g 2 , b 2 is the R, G, and B values of the second color, respectively, ⁇ r, ⁇ g, and ⁇ b are the R, G, and B difference values, respectively, and ⁇ d is the moving block moves from the initial position to the The position increment at the current position point, and D is the preset position increment.
  • the color between the first color and the second color is determined according to the position increment ⁇ d of the toner patch movement.
  • ⁇ d is greater than 0, and the color displayed by the movement track of the toner patch changes from the first color to the second color until ⁇ d is greater than or equal to the position of the toner patch when the preset position increment is greater than or equal to the preset position increment.
  • the circular area corresponding to the point displays the second color.
  • the color between the first color and the second color is calculated by the ratio of the position increment of the toner patch movement to the preset position increment and the difference between the R, G, and B values of the first color and the second color. (including the first color and the second color), and filling the calculated color with a circular area centered at each position point as the color block moves to change from the first color to the second color The color area.
  • FIG. 3 is a two-color rendering method according to a third embodiment of the present invention, including steps S31-S37.
  • the color wheel is provided with a color block, the color wheel and the color block are both circular, the diameter of the color block is equal to the radius of the color wheel, the color block and the color In-disk cutting, the color block moves around the center of the color wheel in the color wheel.
  • Step S31 when the color block is moving forward on the color wheel, acquire a first color corresponding to the initial position of the color block and obtain a second color selected by the user.
  • Step S32 calculating a difference between the R, G, and B values of the first color and the R, G, and B values of the second color, respectively, to obtain R, G, and B difference values.
  • Step S33 traversing each position point of the movement trajectory when the color grading block is moving forward, acquiring coordinates of each position point of the movement trajectory of the color grading block, and obtaining the origin to the movement trajectory A vector of coordinates for each position point.
  • Step S34 cumulatively calculating an angle between adjacent positions between the initial position and the current position point to obtain a position increment when the color block moves from the initial position to the current position point.
  • Step S35 calculating a ratio of the position increment and the preset position increment, and calculating R, G, and B values of the target color according to the ratio and the R, G, and B difference values.
  • Step S36 drawing a circle with the current position point where the color block is located as a circle, forming a circular area, and filling the circular area with a target color corresponding to the current position point.
  • the circular area is filled with the target color, the circular area is subjected to pixel coloring according to the R, G, and B values of the target color point.
  • the position increment of the toner patch movement is the angle of rotation, that is, the angle ⁇ of rotation when the toner patch is moved from the initial position to the current position point is calculated.
  • the loop traverses ⁇ , and draws a circle on the palette in units of 1 degree.
  • the circular area drawn is the same as the size of the palette, and the calculated target color at each angle.
  • the current color of the fill palette is the area.
  • the rotation angle of the drawn circle is: InitialAngle+1, InitialAngle+2,...,InitialAngle+ ⁇ . In the initial case, the InitialAngle is 0, and the toning ball is at the top of the center of the palette.
  • the step of forming a circle with the current position point of the color block as a circle, forming a circular area, and filling the circular area with the target color corresponding to the current position point includes:
  • Step S361 determining whether there is a corresponding circular area in the current position point on the color wheel. If the step S362 is performed, otherwise step S363 is performed.
  • Step S362 replacing the color of the circular area corresponding to the current position point with the target color.
  • Step S363 drawing a circle with the current position point as a center, forming a circular area, and filling the circular area corresponding to the current position point with the target color.
  • the coloring effect of the two colors is dragged by a circle of a large amount of the current color of the color palette.
  • the direction is superimposed to form. It is necessary to consider that in the process of mass grading, in order to avoid excessive system memory growth due to frequent color grading, the following methods are avoided:
  • the color palette can be drawn up to 360 circles, that is, each degree on the color wheel forms a circle of the same size as the color palette, which makes the color rendering effect smooth and natural.
  • a dictionary is used to record the circle corresponding to the rotation angle.
  • it is determined whether there is a circular area corresponding to the position point, and a circle is added if it does not exist. If it exists, delete the previous circle and draw the circle filled with the target color.
  • the initial setting of the color wheel can be filled with the default color, such as black, and the color of the original circular area is replaced with the target color when the color block moves.
  • Step S37 when the toning block moves in the reverse direction, determine a color corresponding to a position point of the toning block on the movement track, and fill the position point where the toning block is located with the corresponding color.
  • the circular area when the toning block moves in the reverse direction, determine a color corresponding to a position point of the toning block on the movement track, and fill the position point where the toning block is located with the corresponding color.
  • the process of grading from the second color to the first color is a reverse process of the process of grading the first color to the second color, and the principles of the two colors are the same.
  • the preset position increment is, for example, 720 (degrees), that is, the difference values of the three color channels of R, G, and B are equally divided into 720, and the values of each one are obtained as ⁇ r/720, ⁇ g/720, ⁇ b. /720.
  • the R, G, and B values of the target color are calculated as:
  • r', g', b' are R, G, and B values of colors corresponding to the third position point, respectively, and ⁇ is when the color block moves from the initial position to the second position
  • the angle of rotation, ⁇ ' is the angle from the second position point to the third position point, and is a negative value.
  • the angle of movement of the color grading block is greater than 0, and the color displayed by the movement trajectory of the color grading block changes from the first color to the second color until the angle at which the color grading block moves forward is greater than or
  • the circular area corresponding to the current position is equal to 720°, and the second color is displayed; when the toner patch moves in the reverse direction, the angle of movement of the color block is negative, and the color of the moving track of the color block is filled from the second color to the first color.
  • the color changes until the circular region corresponding to the current position fills the first color until the angle of the reverse movement of the toner patch is greater than or equal to ⁇ . If ⁇ ' is less than -720°, the toner bar can be adjusted to the first color by rotating 720 degrees counterclockwise.
  • a circular color wheel is taken as an example to describe the method of two-color rendering in detail. It can be understood that the shape of the color wheel and the color block is not limited to a circular shape, and may also be a rectangular shape or other shapes.
  • the position increment of the block movement is calculated as the moving distance of the color block.
  • a fourth embodiment of the present invention further provides a color picking method, which is applied to the color wheel in the above embodiment, and includes steps S41-S42:
  • Step S41 when the click signal is acquired, determine the coordinates of the click position, and move the color block Moving to a position point corresponding to the coordinates on the color wheel;
  • Step S42 selecting a color of a circular area corresponding to the position point corresponding to the coordinate on the color wheel.
  • the color block moves around the origin of the circular color disk, and includes a color container containing 360 items to record the color corresponding to each rotation angle.
  • the position coordinates of the mouse are obtained, and the vector currentVector of the center of the palette to the click point is obtained.
  • Calculate the angle ⁇ between the vector originVextor of the initial position and the vector currentVector. If ⁇ is negative, ⁇ 360+ ⁇ . Find the color corresponding to ⁇ in the color container, that is, get the color of the click.
  • the disc is provided with 360 position points in units of 1°, and if the coordinates of the click position are located between the two position points, by determining which position point the click position falls within, Determine the corresponding circular area of the click position. It is convenient for users to quickly select the desired color on the color palette.
  • FIG. 5 is a color wheel in a fifth embodiment of the present invention, wherein the color wheel is provided with a color block, and the color wheel includes:
  • the color obtaining module 10 is configured to acquire a first color corresponding to the initial position of the color patch in the color wheel and obtain a second selected by the user when the color block is moving forward on the color wheel colour;
  • a calculation module 20 configured to traverse each position point of the movement trajectory of the color block, and calculate a color increment of the first color to the second color change according to a position increment of the color block movement, Obtaining a target color corresponding to each position point of the moving block in the moving track;
  • the first filling module 30 draws a circle with the current position point of the color block as a circle, forms a circular area, and fills the circular area with a target color corresponding to the current position point.
  • the present embodiment controls the color of the color wheel to change between the first color and the second color by moving the toner patch. It is convenient for the user to debug the color by himself and get a color palette with a colorful color change.
  • the calculation module 20 includes:
  • a first calculation sub-module 21 configured to calculate a difference between the R, G, and B values of the first color and the R, G, and B values of the second color to obtain a difference value of R, G, and B;
  • a second calculation sub-module 22 configured to calculate the color block to move from the initial position to the current position Position increment at the time of the point;
  • a third calculation sub-module 23 configured to calculate a ratio of the position increment and a preset position increment, and calculate an R, G, and B value of the target color according to the ratio and the R, G, and B difference values.
  • r, g, and b are R, G, and B values respectively corresponding to the color of the second position
  • r 1 , g 1 , and b 1 are respectively R, G, and B values of the first color
  • r 2 , g 2 and b 2 are respectively R, G, and B values of the second color
  • ⁇ r, ⁇ g, and ⁇ b are the R, G, and B difference values, respectively
  • ⁇ d is the toner block from the initial position.
  • the position increment when moving to the current position point, and D is the preset position increment.
  • the color wheel further includes:
  • a second filling module 40 configured to determine a color corresponding to a position point of the color grading block on the moving trajectory when the color grading block is reversely moved, and fill the color grading block with the corresponding color The circular area corresponding to the location point.
  • the second calculating sub-module 22 includes:
  • a coordinate acquisition module configured to acquire coordinates of each position point of the movement trajectory of the color grading block, and obtain a vector of coordinates of the origin point to each position point of the movement trajectory;
  • An angle calculation module configured to cumulatively calculate an angle between adjacent vectors between the initial position and the current position point, to obtain a position increment when the color block moves from the initial position to the current position point .
  • the color wheel further includes:
  • the signal acquisition module 50 is configured to determine a coordinate of the click position when the click signal is acquired, and move the color block to a position point corresponding to the coordinate on the color wheel;
  • the color selection module 60 is configured to select a color of a circular area of the position point corresponding to the coordinate on the color wheel.
  • the present invention also provides a readable storage medium having stored thereon a computer program, the program being executed by a processor, the steps of any of the above embodiments 1 to 4.
  • the present invention also provides a computer comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing any one of the above embodiments 1 to 4 when the program is executed The steps of the method.
  • the program can be stored in a computer readable storage medium.
  • the program when executed, includes the steps described in the above methods.
  • the storage medium includes: a ROM/RAM, a magnetic disk, an optical disk, and the like.

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Abstract

L'invention concerne une palette, un procédé de rendu de deux couleurs, un procédé d'acquisition de couleurs, un support d'informations lisible et un ordinateur. La palette comporte un bloc de mélange de couleurs. Le procédé de rendu de deux couleurs comprend les étapes qui consistent : lorsque le bloc de mélange de couleurs se déplace vers une direction positive sur la palette, à acquérir une première couleur correspondant à la position initiale du bloc de mélange de couleurs sur la palette et une seconde couleur sélectionnée par un utilisateur (S11) ; à passer par chaque point de position sur la trajectoire de déplacement du bloc de mélange, et à calculer, selon un incrément de position du déplacement du bloc de mélange, un incrément de variation de couleur de la première couleur à la seconde couleur pour obtenir des couleurs cibles correspondant aux points de position sur la trajectoire de déplacement du bloc de mélange (S12) ; à utiliser la position courante du bloc de mélange comme centre pour tracer un cercle et former une région circulaire, et à remplir la région circulaire avec la couleur cible correspondant à la position courante (S13). La présente invention permet, grâce au déplacement du bloc de mélange, de commander la palette pour faire varier une couleur entre la première et la seconde couleur.
PCT/CN2017/103772 2017-07-01 2017-09-27 Palette, procédé de rendu de deux couleurs, procédé d'acquisition de couleurs, support d'informations lisible et ordinateur WO2019006892A1 (fr)

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