WO2019006893A1

WO2019006893A1 - Palette, color blending method, readable storage medium, and computer apparatus

Info

Publication number: WO2019006893A1
Application number: PCT/CN2017/103773
Authority: WO
Inventors: 李幸斌
Original assignee: 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
Priority date: 2017-07-01
Filing date: 2017-09-27
Publication date: 2019-01-10
Also published as: CN107450873B; CN107450873A

Abstract

A palette, color blending method, readable storage medium, and computer apparatus, configured to facilitate color blending and adjustment for users to obtain various colors. The palette is provided with a color blending block. The color blending method comprises: acquiring a second color selected by a user (S11); and when the blending block moves in a positive direction from a first position of the palette to a second position thereof, blending, according to a position increment of the movement of the blending block, a first color and the second color to obtain a color corresponding to the second position, the first color being a color corresponding to the first position (S12). The present invention acquires, by moving the blending block to blend the first color and second color, a color therebetween.

Description

Color wheel, color method, readable storage medium, and computer device

Technical field

The present invention relates to the field of color processing, and more particularly to a color wheel, a color grading method, a readable storage medium, and a computer device.

Background technique

At present, the color picking of terminal devices such as computers, tablets, etc., generally controls the color change of the display screen by selecting the color on the color wheel.

However, the color palette exhibits limited color, and color adjustment is generally performed in RGB mode or HSL mode to obtain various colors. In RGB mode, different colors are obtained by changing the R, G, and B values. This mode requires the user to be familiar with the R, G, and B values of various colors, and is not suitable for general users. In HSL mode, the color of a hue is selected, and the color is adjusted by changing the brightness and saturation. In this mode, only the color of one hue can be adjusted. It is necessary to change the hue value to obtain the color of other hue, which is not conducive to User quick adjustment and selection of colors.

Summary of the invention

In view of the above circumstances, it is necessary to provide a color wheel, a color grading method, a readable storage medium, and a computer device in view of the problem of low color adjustment efficiency in the prior art.

The invention provides a color grading method, which is applied to a color wheel, wherein the color wheel is provided with a color grading block, and the color grading method comprises:

Obtain a second color selected by the user;

Reconciling the first color and the second color according to a position increment of the toner patch movement when the toner patch is moved forward from the first position of the color wheel to the second position to obtain the a color corresponding to the second position, wherein the first color is a color corresponding to the first position.

The color grading method, wherein the step of merging the first color and the second color according to a position increment of the movement of the toner patch to obtain a color corresponding to the second position comprises:

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, Obtaining R, G, B difference values;

Calculating a position increment of the color block movement, and calculating a ratio of the position increment to a preset position increment;

Calculating R, G, and B values of the color corresponding to the second position according to the ratio and the R, G, and B difference values.

In the above color grading method, the calculation formulas of the R, G, and B values of the color corresponding to the second position are:

When Δd ≤ D,

When Δd>D,

Wherein r, g, and b are R, G, and B values respectively corresponding to the color of the second position, and 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, and Δr, Δg, and Δb are the R, G, and B difference values, respectively, and Δd is the color block from the first The position increment when the position is moved to the second position of the color wheel, and D is the preset position increment.

The above color grading method, wherein an absolute value of a position increment when the toner patch is reversely moved from the second position to a third position is greater than or equal to the toner patch moving from the first position to the In the second position, the resulting color is the first color.

The above color grading method, wherein the color grading block rotates around an origin of the color wheel when the color grading block moves, and the step of calculating a position increment of the color grading block movement includes:

Obtaining coordinates of each position of the movement trajectory of the color grading block, and obtaining a vector of coordinates of the origin to each position of the movement trajectory;

Calculating an angle between vectors corresponding to two adjacent positions of the moving track and calculating a sum of the angles between the first position and the second position to obtain the color block From the first The position increment when the position is moved to the second position of the color wheel.

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 second color selected by the user;

a color modulating module, configured to reconcile the first color and the second according to a position increment of the toner patch movement when the toner patch moves from the first position to the second position of the color wheel a color to obtain a color corresponding to the second position, the first color being a color corresponding to the first position.

The color wheel, wherein the color correction module comprises:

a first calculating 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 calculating module, configured to calculate a position increment of the color block movement, and calculate a ratio of the position increment to a preset position increment;

a third calculating module, configured to calculate, according to the ratio and the R, G, and B difference values, R, G, and B values of colors corresponding to the second position;

The module is selected to select a color corresponding to the second location.

The color wheel, wherein the calculation formula of the R, G, and B values of the color corresponding to the second position is:

When Δd ≤ D,

When Δd>D,

The above color wheel, wherein

Obtained when the absolute value of the position increment of the toner patch moving backward from the second position to the third position is greater than or equal to the color block moving from the first position to the second position The color is the first color.

The color wheel, wherein the color block rotates around an origin of the color wheel when moving, the second calculation module includes:

a coordinate acquisition module, configured to acquire coordinates of each position of the movement trajectory of the color grading block, and obtain a vector of coordinates of the origin to each position of the movement trajectory;

a second calculating submodule, configured to calculate an angle between vectors corresponding to two adjacent positions of the moving track and calculate a sum of the angles between the first position and the second position And obtaining a position increment when the toner patch moves from the first position to the second position of 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.

A computer device comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the program to implement the steps of the method.

In the embodiment of the present invention, the user may use the color of the color area at any position where the color block is located as the first color, and select the standard color preset on the color wheel as the second color, and adjust the first by moving the color block. The color and the second color, the color between the two colors. It is convenient for the user to debug the color by himself and get the colorful colors.

DRAWINGS

1 is a flow chart of a color grading method in a first embodiment of the present invention;

2 is a flow chart of a color grading method in a second embodiment of the present invention;

3 is a structural block diagram of a color wheel in a third embodiment of the present invention;

Figure 4 is a block diagram showing the structure of the color correction module.

Detailed ways

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. Pieces. The embodiments described below with reference to the accompanying drawings are intended to be illustrative of the invention and are not to be construed as limiting.

These and other aspects of the embodiments of the present invention will be apparent from the description and appended claims. In the description and drawings, specific embodiments of the embodiments of the invention are disclosed This limit. Rather, the invention is to cover all modifications, variations and equivalents within the spirit and scope of the appended claims.

Referring to FIG. 1, in a first embodiment of the present invention, a method of coloring is applied to a color wheel, and a color block is disposed on the color wheel, and the color block can be moved on the color wheel, for example, The user can drag the color block by dragging the mouse or touching the display. As shown in FIG. 1, the toning method includes steps S11 to S12.

In step S11, the second color selected by the user is obtained. 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, when the color block is moved forward from the first position of the color wheel to the second position, the first color and the second color are adjusted according to the position increment of the color block movement, Obtaining a color corresponding to the second position, where the first color is a color corresponding to the first position.

The user adjusts the color between the two colors by dragging the color palette to blend the first color and the second color. When the toner patch moves from the first position to the second position, the resulting color changes from the first color to the second color, and the degree of change of the first color to the second color is controlled according to the position increment of the toner patch movement.

In this embodiment, the user may use the color of the color area at any position where the color block is located as the first color, and select the standard color preset on the color wheel as the second color, and adjust the first color by moving the color block. And the second color, get the color between the two colors. It is convenient for the user to debug the color by himself and get the colorful colors.

Referring to FIG. 2, a method of color grading according to a second embodiment of the present invention includes steps S21 to S24.

Step S21: Acquire a second color selected by the user.

Step S22, when the color block is moved forward from the first position of the color wheel to the second position, calculating R, G, and B values of the first color and R, G, and The difference between the B values gives the difference values of R, G, and B. The calculation formulas for the R, G, and B delta values Δr, Δg, and Δb are as follows:

Δr=r ₂ -r ₁ ;

Δg=g ₂ -g ₁ ;

Δb=b ₂ -b ₁ ;

Wherein 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, calculating a position increment of the color block movement, and calculating a ratio of the position increment and the preset position increment.

Step S24, calculating R, G, and B values of colors corresponding to the second position according to the ratio and the R, G, and B difference values.

In the above steps, the calculation formulas of the R, G, and B values of the color corresponding to the second position are:

When Δd ≤ D,

When Δd>D,

Wherein, r, g, and b are R, G, and B values respectively corresponding to the color of the second position, and Δd is a position when the color block moves from the first position to the second position of the color wheel. Incremental, D is the preset position increment.

The preset position increment is used to control the variation range of the color, and the color obtained when the position increment of the toner patch moves is greater than or equal to the preset position increment is the second color. When the color corresponding to the second position of the color wheel is selected, the text or graphic can be color-filled or used as a color pen.

Further, when the absolute value of the position increment of the toner patch moving backward from the second position to the third position is greater than or equal to when the toner patch moves from the first position to the second position The resulting color is the first color. The process of reversing the color selection of the toner patch can be regarded as the reverse process of the forward movement of the toner patch process, and the principle of color blending is basically the same.

In this embodiment, the shape and size of the color wheel and the color block can be designed into various shapes according to user requirements. For example, in the embodiment, 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, and the color block and the color wheel are inscribed, The toner patch moves around the center of the color wheel in the color wheel.

Further, the step of calculating the position increment of the toner patch movement includes steps S31 to S33.

Step S31, acquiring coordinates of each position of the movement trajectory of the color grading block, and obtaining a vector of coordinates of the origin to each position of the movement trajectory;

Step S32, calculating an angle between vectors corresponding to two adjacent positions of the moving track;

Step S33, calculating a sum of the angles between the first position and the second position to obtain when the color block moves from the first position to the second position of the color wheel Position increment.

In the above steps, the position increment of the toner patch movement is the angle of rotation, that is, the angle θ of rotation when the toner patch is moved from the first position to the second position is calculated. When the toner patch moves, it moves step by step in units of 1°.

The preset position increment is, for example, 720°, 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 Δr/720, Δg/720, Δb/720. . When the color block is moving forward, that is, clockwise, the R, G, and B values of the color corresponding to the second position are calculated as:

When θ ≤ 720,

When θ>720,

When the color block moves from the second position to the third position counterclockwise, the calculation formulas of the R, G, and B values of the color corresponding to the third position are:

When -720 ≤ θ' ≤ 0, and θ ≤ 720,

When -720≤θ'≤0, and θ>720,

When θ'<-720,

Wherein r', g', b' are the R, G, and B values of the color corresponding to the third position, respectively, and θ is the second movement of the color block from the first position to the color wheel. The angle of rotation at the position, θ' is the angle at which the toner patch rotates when moving backward from the second position to the third position. When θ' is more than 720°, θ' in the above formula is calculated as 720 degrees.

When the toner patch moves forward, the angle at which the toner patch moves is greater than 0, and the color of the blend changes from the first color to the second color until the blended color is greater than or equal to 720 degrees. a second color; when the toner patch moves in the reverse direction, the angle of the toner patch moves is less than 0, and the blended color changes from the second color to the first color until the angle of the reverse movement of the toner patch is greater than or equal to θ. The color is the first color. If θ' is greater than 720, the 720 block can be adjusted to the first color by rotating 720 degrees counterclockwise.

In this embodiment, a circular color wheel is taken as an example to describe the coloring method of the color wheel in detail. In other embodiments of the present invention, the shape of the color wheel and the color block is not limited to a circular shape. It may also be a rectangle or other shape, and the position increment of the palette moving is calculated by the moving distance of the palette.

Further, in another embodiment of the present invention, the color grading method further includes the steps of:

When the second color is acquired and the color block is not moved, the color corresponding to the second position is the second color.

That is, when the color patch is not moved after the second color is acquired, the two colors are not adjusted, and the second color is directly selected.

Please refer to FIG. 3, which is a color wheel in a third embodiment of the present invention. The color wheel is provided with a color block, and the color wheel includes:

a color obtaining module 10, configured to acquire a second color selected by a user;

a color modulating module 20, configured to reconcile the first color and the first portion according to a position increment of the color grading block movement when the color grading block is moved forward from the first position of the color wheel to the second position Two colors to obtain a color corresponding to the second position, the first color being a color corresponding to the first position.

Further, the color modulating module shown in FIG. 4 includes:

The first calculating module 21 is 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 calculating module 22, configured to calculate a position increment of the color block movement, and calculate a ratio of the position increment to a preset position increment;

The third calculating module 23 is configured to calculate R, G, and B values of colors corresponding to the second position according to the ratio and the R, G, and B difference values.

Further, the calculation formulas of the R, G, and B values of the color corresponding to the second position are:

When Δd ≤ D,

When Δd>D,

In progress, the color wheel further includes:

Further, when the absolute value of the position increment of the toner patch moving backward from the second position to the third position is greater than or equal to when the toner patch moves from the first position to the second position The resulting color is the first color.

Further, when the color grading block moves around the origin of the color wheel, the second calculating module 22 includes:

The present invention also provides a readable storage medium having stored thereon a computer program, characterized in that the program is executed by a processor to implement the steps of the method of any of the above embodiments 1 and 2.

The present invention also provides a computer device 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 and 2 when the program is executed The steps of the method.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or apparatus, or in conjunction with such an instruction execution system, apparatus, or apparatus.

More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as may The program is obtained electronically, for example by optical scanning of paper or other medium, followed by editing, interpretation or, if necessary, processing in other suitable manner, and then storing it in a computer memory.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A color grading method, which is applied to a color wheel, wherein the color wheel is provided with a color grading block, and the color grading method comprises:

Obtain a second color selected by the user;

Reconciling the first color and the second color according to a position increment of the toner patch movement when the toner patch is moved forward from the first position of the color wheel to the second position to obtain the a color corresponding to the second position, wherein the first color is a color corresponding to the first position.
The color grading method according to claim 1, wherein said first color and said second color are blended in accordance with a positional increment of movement of said toner patch to obtain said second position corresponding The steps of the color include:

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 to obtain a difference value of R, G, and B;

Calculating a position increment of the color block movement, and calculating a ratio of the position increment to a preset position increment;

Calculating R, G, and B values of the color corresponding to the second position according to the ratio and the R, G, and B difference values.
The color grading method according to claim 2, wherein the calculation formula of the R, G, and B values of the color corresponding to the second position is:

When Δd ≤ D,

When Δd>D,

Wherein r, g, and b are R, G, and B values respectively corresponding to the color of the second position, and r 1 , g 1 , and b 1 are R, G, and B values of the first color, respectively, r 2 , g 2 and b 2 are respectively R, G, and B values of the second color, and Δr, Δg, and Δb are the R, G, and B difference values, respectively, and Δd is the color block from the first a position increment when the position moves to the second position, and D is the preset position increment.
The color grading method according to claim 1, wherein an absolute value of a position increment when said toner patch is reversely moved from said second position to said third position is greater than or equal to said toner patch When the first position is moved to the second position, the obtained color is the first color.
A method of grading according to claim 2, wherein said toner patch is rotated about an origin of said color wheel as it moves, said step of calculating a position increment of said toner patch movement comprising:

Obtaining coordinates of each position of the movement trajectory of the color grading block, and obtaining a vector of coordinates of the origin to each position of the movement trajectory;

Calculating an angle between vectors corresponding to two adjacent positions of the moving track and calculating a sum of the angles between the first position and the second position to obtain the color block A position increment when moving from the first position to the second position.
A color wheel, characterized in that the color wheel is provided with a color block, and the color wheel comprises:

a color obtaining module, configured to acquire a second color selected by the user;

a color modulating module, configured to reconcile the first color and the second according to a position increment of the toner patch movement when the toner patch moves from the first position to the second position of the color wheel a color to obtain a color corresponding to the second position, the first color being a color corresponding to the first position.
The color wheel of claim 6 wherein said color correction module comprises:

a first calculating 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 calculating module, configured to calculate a position increment of the color block movement, and calculate a ratio of the position increment to a preset position increment;

a third calculating module, configured to calculate, according to the ratio and the R, G, and B difference values, R, G, and B values of colors corresponding to the second position;

The module is selected to select a color corresponding to the second location.
The color wheel according to claim 7, wherein the calculation formula of the R, G, and B values of the color corresponding to the second position is:

When Δd ≤ D,

When Δd>D,

Wherein r, g, and b are R, G, and B values respectively corresponding to the color of the second position, and 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, and Δr, Δg, and Δb are the R, G, and B difference values, respectively, and Δd is the color block from the first The position increment when the position is moved to the second position of the color wheel, and D is the preset position increment.
A readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the steps of the method of any of claims 1-5.
A computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program to implement any one of claims 1-5 The steps of the method described.