CN107450873B - Color wheel, color matching method, readable storage medium and computer device - Google Patents
Color wheel, color matching method, readable storage medium and computer device Download PDFInfo
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Abstract
The invention provides a color disc, a color matching method, a readable storage medium and computer equipment, wherein a color matching block is arranged on the color disc, and the color matching method comprises the following steps: acquiring a second color selected by a user; when the color adjusting block moves from the first position of the color disc to the second position in the forward direction, adjusting the first color and the second color according to the position increment of the movement of the color adjusting block to obtain the color corresponding to the second position, wherein the first color is the color corresponding to the first position. By moving the toner patch to blend the first color and the second color, a color between the two colors is obtained. The embodiment of the invention can facilitate the user to debug the color by himself to obtain the colorful color.
Description
Technical Field
The present invention relates to the field of color processing, and in particular, to a color wheel, a color matching method, a readable storage medium, and a computer device.
Background
At present, the color of terminal devices such as computers and tablets is generally selected to control the color change of a display picture.
However, the color disc presents limited colors, and color adjustment is generally performed in the RGB mode or the HSL mode to obtain various colors. In the RGB mode, different colors are obtained by changing R, G, B values, and this mode requires that the user be familiar with R, G, B values of various colors and is not suitable for general users. In the HSL mode, a color with one hue is selected, and color adjustment is performed by changing brightness and saturation, but in this mode, only the color with one hue can be adjusted, and the hue value needs to be changed to obtain colors with other hues, which is not beneficial to quick adjustment and selection of colors by a user.
Disclosure of Invention
In view of the above, it is necessary to provide a color wheel, a color matching method, a readable storage medium and a computer device to solve the problem of low color adjustment efficiency in the prior art.
The invention provides a color matching method, which is applied to a color disc, wherein a color matching block is arranged on the color disc, and the color matching method comprises the following steps:
acquiring a second color selected by a user;
when the color adjusting block moves from the first position of the color disc to the second position in the forward direction, adjusting the first color and the second color according to the position increment of the movement of the color adjusting block to obtain the color corresponding to the second position, wherein the first color is the color corresponding to the first position.
In the above color matching method, the step of matching the first color and the second color according to the position increment of the movement of the color matching block to obtain the color corresponding to the second position includes:
calculating differences between R, G, B values of the first color and R, G, B values of the second color respectively to obtain R, G, B difference values;
calculating the position increment of the movement of the color matching block, and calculating the ratio of the position increment to a preset position increment;
calculating R, G, B value of the color corresponding to the second position according to the ratio and the R, G, B difference value.
In the above color matching method, a calculation formula of the R, G, B value of the color corresponding to the second position is:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, respectively1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2R, G, B values for the second color, Δ r, Δ g, Δ b values for the difference R, G, B, Δ D is the position increment at which the palette moves from the first position to the second position of the color wheel, and D is the predetermined position increment.
In the above toning method, when the absolute value of the position increment of the toning block reversely moving from the second position to the third position is greater than or equal to the absolute value of the position increment of the toning block moving from the first position to the second position, the obtained color is the first color.
The color matching method described above, wherein the color patch rotates around an origin of the color wheel when moving, and the step of calculating the position increment of the movement of the color patch includes:
acquiring coordinates of each position of a moving track of the color adjusting block, and acquiring a vector from the origin to the coordinates of each position of the moving track;
and calculating an included angle between vectors corresponding to two adjacent positions of the moving track and calculating the sum of the included angles between the first position and the second position to obtain the position increment when the color mixing block moves from the first position to the second position of the color disc.
The invention also provides a color disc, wherein the color disc is provided with a color adjusting block, and the color disc comprises:
the color obtaining module is used for obtaining a second color selected by a user;
and the color matching module is used for matching a first color and a second color according to the position increment of the movement of the color matching block when the color matching block moves from the first position to the second position in the forward direction so as to obtain the color corresponding to the second position, wherein the first color is the color corresponding to the first position.
The color wheel, wherein the color matching module comprises:
the first calculation module is used for calculating the difference value between the R, G, B value of the first color and the R, G, B value of the second color respectively to obtain a R, G, B difference value;
the second calculation module is used for calculating the position increment of the movement of the toner block and calculating the ratio of the position increment to a preset position increment;
a third calculating module, configured to calculate R, G, B values of the color corresponding to the second position according to the ratio and the R, G, B difference value;
and the selecting module is used for selecting the color corresponding to the second position.
The color disc, wherein the R, G, B value of the color corresponding to the second position is calculated by the following formula:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, respectively1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2R, G, B values for the second color, Δ r, Δ g, Δ b values for the difference R, G, B, Δ D is the position increment at which the palette moves from the first position to the second position of the color wheel, and D is the predetermined position increment.
The color wheel, wherein,
when the absolute value of the position increment of the color mixing block reversely moved from the second position to the third position is larger than or equal to the absolute value of the position increment of the color mixing block moved from the first position to the second position, the obtained color is the first color.
The color wheel, wherein the color wheel rotates around the origin of the color wheel when the color matching block moves, and the second calculating module comprises:
the coordinate acquisition module is used for acquiring the coordinate of each position of the moving track of the color adjusting block and obtaining the vector from the origin to the coordinate of each position of the moving track;
and the second calculation submodule is used for calculating an included angle between vectors corresponding to two adjacent positions of the moving track and calculating the sum of the included angles between the first position and the second position so as to obtain the position increment when the color mixing block moves from the first position to the second position of the color disc.
The invention also provides a readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the above-mentioned method.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above method when executing the program.
In the embodiment of the invention, a user can take the color of the color area at any position where the color matching block is located as the first color, select the preset standard color on the color disc as the second color, and obtain the color between the two colors by moving the color matching block to match the first color and the second color. The color can be adjusted by the user to obtain colorful color.
Drawings
FIG. 1 is a flow chart of a toning method according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a color matching method in a second embodiment of the present invention;
FIG. 3 is a block diagram of a color wheel according to a third embodiment of the present invention;
FIG. 4 is a block diagram of the construction of the toning module of FIG. 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Referring to fig. 1, a color matching method in a first embodiment of the present invention is applied to a color wheel, where the color wheel is provided with a color matching block, and the color matching block can move on the color wheel, for example, a user can drag the color matching block by dragging a mouse or touching a display screen. As shown in FIG. 1, the color matching method includes steps S11-S12.
In step S11, the second color selected by the user is acquired. A plurality of standard colors can be preset on the color wheel, and a user selects one color as a second color through a mouse or touch.
Step S12, when the color adjusting block moves forward from the first position to the second position of the color wheel, adjusting the first color and the second color according to the position increment of the movement of the color adjusting block to obtain a color corresponding to the second position, where the first color is the color corresponding to the first position.
The user blends the first color and the second color by dragging the palette to get a color between the two colors. When the toning block moves from the first position to the second position, the obtained color changes from the first color to the second color, and the change degree of the first color to the second color is controlled according to the position increment of the movement of the toning block.
In this embodiment, the user may use the color of the color area at any position where the color matching block is located as the first color, select the preset standard color on the color wheel as the second color, and obtain the color between the two colors by moving the color matching block to match the first color and the second color. The color can be adjusted by the user to obtain colorful color.
Referring to FIG. 2, a color matching method according to a second embodiment of the present invention includes steps S21-S24.
In step S21, the second color selected by the user is acquired.
Step S22, when the color wheel moves forward from the first position to the second position, calculating differences between R, G, B values of the first color and R, G, B values of the second color, respectively, to obtain R, G, B difference values. R, G, B the difference values Δ r, Δ g, and Δ b are calculated as follows:
Δr＝r2-r1；
Δg＝g2-g1；
Δb＝b2-b1；
wherein r is1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2Respectively R, G, B values for the second color.
And step S23, calculating the position increment of the movement of the color matching block, and calculating the ratio of the position increment to the preset position increment.
Step S24, calculating R, G, B values of the color corresponding to the second position according to the ratio and the R, G, B difference value.
In the above step, the R, G, B value of the color corresponding to the second position is calculated by the following formula:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, Δ D is a position increment when the color-adjusting block moves from the first position to the second position of the color wheel, and D is the preset position increment.
The preset position increment is used for controlling the change range of the color, and when the position increment of the movement of the toner block is larger than or equal to the preset position increment, the obtained color is the second color. When the color corresponding to the second position of the color disc is selected, the text or the figure can be filled with the color or can be used as a color pen.
Further, when the absolute value of the position increment of the color mixing block reversely moving from the second position to the third position is larger than or equal to the absolute value of the position increment of the color mixing block moving from the first position to the second position, the obtained color is the first color. The process of reversely moving the toning blocks to select colors can be regarded as a reverse process of the process of forwardly moving the toning blocks, and the principle of color harmony is basically the same.
In this embodiment, the shapes of the color wheel and the color adjusting block can be designed into various shapes according to the user requirements. For example, in this embodiment, the color wheel and the color matching block are both circular, the diameter of the color matching block is equal to the radius of the color wheel, the color matching block is inscribed in the color wheel, and the color matching block moves around the center of the color wheel on the color wheel.
Further, the step of calculating the position increment of the movement of the toner block includes the steps of:
acquiring coordinates of each position of a moving track of the color adjusting block, and acquiring a vector from the origin to the coordinates of each position of the moving track;
calculating an included angle between vectors corresponding to two adjacent positions of the moving track;
and calculating the sum of the included angles between the first position and the second position to obtain the position increment when the color mixing block moves from the first position to the second position of the color disc.
In the above step, the position increment of the movement of the toner block is the angle of rotation, that is, the angle θ of rotation when the toner block moves from the first position to the second position is calculated. When the color matching block moves, the color matching block gradually moves by taking 1 degree as a unit.
The preset position increment is 720 degrees, namely, the difference values of R, G, B color channels are divided into 720 parts, and the values of each part are Δ r/720, Δ g/720 and Δ b/720. When the color mixing block moves in the forward direction, namely rotates clockwise, the R, G, B value of the color corresponding to the second position is calculated by the formula:
when theta is less than or equal to 720,
when theta is>At the time point of 720, the user can,
when the color mixing block moves from the second position to a third position anticlockwise, the R, G, B value of the color corresponding to the third position is calculated by the formula:
when theta' is less than or equal to 0 and less than or equal to 720,
when theta' is less than or equal to 0 and more than or equal to 720,
when the theta' < -720 is present,
wherein r ', g', b 'are R, G, B values of the color corresponding to the third position, θ is the angle of rotation when the color-adjusting block moves from the first position to the second position of the color wheel, and θ' is the angle of rotation when the color-adjusting block reversely moves from the second position to the third position. When θ 'is greater than 720 °, θ' in the above equation is calculated by 720 degrees.
When the color mixing block moves forwards, the moving angle of the color mixing block is larger than 0, the mixed color changes from the first color to the second color, and the mixed color is the second color until the moving angle of the color mixing block is larger than or equal to 720 degrees; when the color mixing block moves reversely, the moving angle of the color mixing block is smaller than 0, the mixed color changes from the second color to the first color, and the mixed color is the first color until the reverse moving angle of the color mixing block is larger than or equal to theta. If θ' is larger than 720, the color of the first color can be adjusted by rotating 720 degrees counterclockwise according to 720.
In this embodiment, a circular color wheel is taken as an example to describe the color matching method of the color wheel in detail, and it can be understood that in other embodiments of the present invention, the shapes of the color wheel and the color block are not limited to a circle, but may also be a rectangle or other shapes, and the position increment of the moving of the color block is calculated by the moving distance of the color block.
Further, in another embodiment of the present invention, the color matching method further includes the steps of:
and when a second color is obtained and the color adjusting block is not moved, the color corresponding to the second position is the second color.
That is, when the color-mixing block is not moved after the second color is obtained, the second color is directly selected without mixing the two colors.
Referring to fig. 3, a color wheel in a third embodiment of the present invention is shown, where the color wheel is provided with a color adjusting block, and the color wheel includes:
a color obtaining module 10, configured to obtain a second color selected by a user;
and the color matching module 20 is configured to, when the color matching block moves forward from the first position to the second position of the color wheel, match the first color and the second color according to a position increment of the movement of the color matching block to obtain a color corresponding to the second position, where the first color is a color corresponding to the first position.
Further, as shown in fig. 4, the color matching module includes:
the first calculating module 21 is configured to calculate differences between R, G, B values of the first color and R, G, B values of the second color, respectively, to obtain R, G, B difference values;
a second calculating module 22, configured to calculate a position increment of the movement of the toner patch, and calculate a ratio of the position increment to a preset position increment;
a third calculating module 23, configured to calculate R, G, B values of the color corresponding to the second position according to the ratio and the R, G, B difference value.
Further, the R, G, B value of the color corresponding to the second position is calculated by the following formula:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, respectively1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2R, G, B values for the second color, Δ r, Δ g, Δ b values for the difference R, G, B, Δ D is the position increment at which the palette moves from the first position to the second position of the color wheel, and D is the predetermined position increment.
Advantageously, the color wheel further comprises:
further, when the absolute value of the position increment of the color mixing block reversely moving from the second position to the third position is larger than or equal to the absolute value of the position increment of the color mixing block moving from the first position to the second position, the obtained color is the first color.
Further, the color palette rotates around the origin of the color wheel when moving, and the second calculation module 22 includes:
the coordinate acquisition module is used for acquiring the coordinate of each position of the moving track of the color adjusting block and obtaining the vector from the origin to the coordinate of each position of the moving track;
and the second calculation submodule is used for calculating an included angle between vectors corresponding to two adjacent positions of the moving track and calculating the sum of the included angles between the first position and the second position so as to obtain the position increment when the color mixing block moves from the first position to the second position of the color disc.
The present invention also provides a readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the steps of the method of any of the above embodiments 1 and 2.
The invention also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of any of the above embodiments 1 and 2 when executing the program.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A color matching method is characterized by being applied to a color disc, wherein a color matching block is arranged on the color disc, and the color matching method comprises the following steps:
acquiring a second color selected by a user;
when the toning block positively moves from a first position to a second position of the color wheel, determining the change degree of the RGB value of the first color to the RGB value of the second color according to the position increment of the movement of the toning block, and calculating the RGB value of the color corresponding to the second position according to the change degree of the RGB values, wherein the first color is the color corresponding to the first position,
the step of blending the first color and the second color according to the position increment of the movement of the blending block to obtain the color corresponding to the second position comprises the following steps:
when the position increment is smaller than or equal to a preset position increment, calculating difference values of R, G, B values of the first color and R, G, B values of the second color respectively to obtain a R, G, B difference value;
calculating the position increment of the movement of the color matching block, and calculating the ratio of the position increment to a preset position increment;
respectively calculating products of the R, G, B difference values and the ratios to obtain R, G, B incremental values;
and calculating the sum of the R, G, B value of the first color and the R, G, B increment value respectively to obtain a R, G, B value of the color corresponding to the second position.
2. A toning method according to claim 1, wherein the R, G, B value for the color corresponding to the second location is calculated by:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, respectively1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2R, G, B values for the second color, Δ r, Δ g, Δ b values for the difference R, G, B, Δ D is the position increment at which the palette moves from the first position to the second position, and D is the predetermined position increment.
3. A toning method according to claim 1, wherein when the absolute value of the position increment at which the toning block moves reversely from the second position to the third position is greater than or equal to the absolute value of the position increment at which the toning block moves from the first position to the second position, the resulting color is the first color.
4. A toning method as recited in claim 1, wherein the toner patch is rotated about an origin of the color wheel as it moves, and the step of calculating the position increment by which the toner patch moves includes:
acquiring coordinates of each position of a moving track of the color adjusting block, and acquiring a vector from the origin to the coordinates of each position of the moving track;
and calculating an included angle between vectors corresponding to two adjacent positions of the moving track and calculating the sum of the included angles between the first position and the second position so as to obtain a position increment when the color mixing block moves from the first position to the second position.
5. The utility model provides a color disc, its characterized in that is equipped with the color mixing piece on the color disc, the color disc includes:
the color obtaining module is used for obtaining a second color selected by a user;
a color matching module, configured to determine, according to a position increment of movement of the color matching block, a degree of change from an RGB value of a first color to an RGB value of a second color when the color matching block moves from a first position to a second position of the color wheel in a forward direction, and calculate, according to the degree of change in the RGB value, a color corresponding to the second position, where the first color is a color corresponding to the first position, and the color matching module includes:
the first calculation module is used for calculating the difference values of R, G, B values of the first color and R, G, B values of the second color respectively to obtain R, G, B difference values when the position increment is smaller than or equal to a preset position increment;
the second calculation module is used for calculating the position increment of the movement of the toner block and calculating the ratio of the position increment to a preset position increment;
and the third calculating module is used for respectively calculating products of the R, G, B difference values and the ratios to obtain R, G, B incremental values, and calculating the sum of R, G, B values of the first color and the R, G, B incremental values to obtain R, G, B values of the color corresponding to the second position.
6. The color wheel as claimed in claim 5, wherein the R, G, B value of the color corresponding to the second position is calculated as:
when the delta D is less than or equal to D,
when Δ d>When the position D is in the range of D,
wherein r, g, b are R, G, B values of the color corresponding to the second position, respectively1、g1、b1R, G, B values, r, respectively, for the first color2、g2、b2R, G, B values for the second color, Δ r, Δ g, Δ b values for the difference R, G, B, Δ D is the position increment at which the palette moves from the first position to the second position of the color wheel, and D is the predetermined position increment.
7. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
8. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1-4 when executing the program.
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| PCT/CN2017/103773 WO2019006893A1 (en) | 2017-07-01 | 2017-09-27 | Palette, color blending method, readable storage medium, and computer apparatus |
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| CN105657391B (en) * | 2016-01-04 | 2017-07-28 | 京东方科技集团股份有限公司 | A kind of method and device of image procossing |
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| WO2019006893A1 (en) | 2019-01-10 |
| CN107450873A (en) | 2017-12-08 |
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