CN112954871B - Moving head lamp CMY gradual change control method, device, equipment and storage medium - Google Patents
Moving head lamp CMY gradual change control method, device, equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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Abstract
The invention discloses a method, a device and a storage medium for CMY gradual change control of a moving head lamp. The method comprises the following steps: detecting the gray scale and the total travel of each light source in the CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are set with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke; according to the sum of the gray levels of any two light sources, the total stroke of the third light source is adjusted to be the corresponding limited stroke, so that the third color is added after the two colors are added, and the color cast effect cannot occur in the latter half; when the sum of the gray levels of the three light sources is larger than a preset limit gray level value, the total dimming gray level value of the moving head lamp is reduced according to the gray levels of the three light sources, and the effect that the color is color cast and uneven does not occur when CMY full color is added. The invention can solve the color cast and uneven effect defects of CMY of the prior moving head lamp without changing CMY hardware.
Description
Technical Field
The invention relates to the technical field of moving head lamps, in particular to a method, a device, equipment and a storage medium for CMY gradual change control of a moving head lamp.
Background
CMY is an abbreviation for Cyan (Cyan), Magenta (Magenta) or Magenta (Magenta) and Yellow (Yellow), and the method of combining the three basic colors in a certain ratio is a subtractive color mixing mode, and the colors generated by this method are called subtractive colors because it reduces the reflected light required for the visual system to recognize the colors.
At present, the CMY functional effect of the moving head lamp has defects; when the two colors are added and the third color is added, the color cast effect appears in the second half section; when CMY full color is added, theoretically, the three colors are added to be equal to black, but due to the patch plating, the addition of the three colors causes an unsharp state, and the black obtained by the addition of the three colors is not pure black, and the resulting color is color cast and uneven.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a control method, device, equipment and storage medium of moving head lamp CMY gradual change, can avoid appearing the color cast and inhomogeneous problem when the colour adds, improve the practicality of moving head lamp CMY function.
In order to solve the technical problem, the invention provides a method for controlling CMY gradual changes of a moving head lamp, which comprises the following steps:
detecting the gray scale and the total travel of each light source in the CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are provided with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke;
adjusting the total stroke of a third light source to be the corresponding limit stroke according to the sum of the gray scales of any two light sources;
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head light according to the gray levels of the three light sources.
Further, the adjusting the total stroke of the third light source to the corresponding limit stroke according to the sum of the gray levels of any two light sources specifically includes:
when the sum of the gray levels of any two light sources is greater than or equal to a preset first threshold value, adjusting the total stroke of a third light source to be a corresponding limited stroke;
and when the sum of the gray scales of any two light sources is smaller than the first threshold, the total stroke of the third light source is not adjusted.
Further, when the sum of the grays of the three light sources is greater than a preset limit gray value, the total dimming gray value of the moving head lamp is reduced according to the grays of the three light sources, specifically:
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray level value, the limit gray level value and the sum of the gray levels of the three light sources, and reducing the current total dimming gray level value of the moving head lamp by the total dimming adjustment value.
Further, the total dimming adjustment value of the moving head lamp is calculated according to the current total dimming gray value, the limited gray value and the sum of the grays of the three light sources, and specifically comprises the following steps:
calculating a total dimming adjustment value of the moving head lamp according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Is the gray scale of the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Is the total dimming adjustment value; d3Is the defined gray value, and D3＜765。
In order to solve the above technical problem, the present invention further provides a moving head light CMY gradation control device, including: detection module, stroke adjustment module and module of adjusting luminance specifically do:
the detection module is used for detecting the gray scale and the total stroke of each light source in CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are set with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke;
the stroke adjusting module is used for adjusting the total stroke of a third light source to the corresponding limit stroke according to the sum of the gray levels of any two light sources;
and the dimming module is used for reducing the total dimming gray value of the moving head lamp according to the gray values of the three light sources when the sum of the gray values of the three light sources is greater than a preset limit gray value.
Further, the stroke adjustment module comprises: a limiting unit and a non-limiting unit;
the limiting unit is used for adjusting the total stroke of the third light source to the corresponding limiting stroke when the sum of the gray levels of any two light sources is greater than or equal to a preset first threshold;
the non-limiting unit is used for not adjusting the total stroke of the third light source when the sum of the gray scales of any two light sources is smaller than the first threshold.
Further, the dimming module is configured to reduce the total dimming grayscale value of the moving head lamp according to the grays of the three light sources when the sum of the grays of the three light sources is greater than a preset limit grayscale value, specifically:
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray level value, the limit gray level value and the sum of the gray levels of the three light sources, and reducing the current total dimming gray level value of the moving head lamp by the total dimming adjustment value.
Further, the total dimming adjustment value of the moving head lamp is calculated according to the current total dimming gray value, the limited gray value and the sum of the grays of the three light sources, and specifically comprises the following steps:
calculating a total dimming adjustment value of the moving head lamp according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Is the gray scale of the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Is the total dimming adjustment value; d3Is the defined gray value, and D3＜765。
In order to solve the above technical problem, the present invention further provides a terminal device, comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements the moving head light CMY gradation control method as described in any one of the above.
In order to solve the above technical problem, the present invention further provides a computer readable storage medium, wherein the computer readable storage medium comprises a stored computer program, and when the computer program runs, the computer readable storage medium is controlled to execute a moving head light CMY gradient control method according to any one of the above items.
The embodiment of the invention discloses a method, a device, equipment and a storage medium for CMY gradual change control of a moving head lamp. Compared with the prior art, the method has the following beneficial effects:
the invention provides a method, a device, equipment and a storage medium for CMY (color, hue, saturation and brightness) gradual change control of a moving head lamp. The method comprises the steps of firstly detecting the gray level and the total travel of each light source in CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are set with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke; adjusting the total stroke of a third light source to be the corresponding limit stroke according to the sum of the gray scales of any two light sources; and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head lamp according to the gray levels of the three light sources. Compared with the prior art that CMY hardware needs to be changed, the filter film with a linear color mixing area is covered on the transparent substrate, the thickness of the filter film in the color mixing area is gradually changed, and the color mixing of a plurality of optical filters in the color mixing process is uniform.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of a moving head light CMY fade control method provided by the present invention;
fig. 2 is a block diagram of a CMY gradation control device of a moving head light according to the present invention;
FIG. 3 is a table diagram of one embodiment of a moving head light CMY fade control method provided by the present invention;
fig. 4 is a table diagram of an embodiment of the CMY fade control method for a moving head light according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a moving head light CMY gradient control method provided by the present invention, as shown in fig. 1, the method includes steps 101 to 103, and each step is as follows:
step 101: the gradation and the total stroke of each light source in the CMY function are detected.
In this embodiment, the light sources include a C-color light source, an M-color light source, and a Y-color light source, and the gray scale and the stroke of each light source are set to maximum values, the gray scale and the stroke of each light source are 255, and the limited stroke of each light source is less than or equal to the respective corresponding maximum stroke value; since the gradation and the total stroke of each light source in the moving head light CMY function may be different, the gradation and the total stroke of each light source in the moving head light CMY function are determined first.
Step 102: and adjusting the total stroke of the third light source to be the corresponding limit stroke according to the sum of the gray scales of any two light sources.
In this embodiment, since the gray levels and the total stroke of the three light sources in the moving head light CMY function are determined in step 101, when the sum of the gray levels of any two light sources is greater than or equal to the preset first threshold, the total stroke of the third light source is adjusted to the corresponding limited stroke, and the stroke above the limited stroke does not react; and when the sum of the gray scales of any two light sources is smaller than the first threshold, the total stroke of the third light source is not adjusted. When the gray values of any two light sources reach the limit values in the step, the stroke of the third color is already limited, so that the stroke after the stroke is limited can keep the color unchanged, and the color of the second half can be prevented from color cast.
In the present embodiment, since the maximum stroke is set to 255, the preferred value of the first threshold is 510.
Step 103: and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head lamp according to the gray levels of the three light sources.
In this embodiment, when the sum of the grays of the three light sources is greater than a preset defined grayscale value, the total dimming adjustment value of the moving head lamp is calculated according to the current total dimming grayscale value, the defined grayscale value and the sum of the grays of the three light sources, and the current total dimming grayscale value of the moving head lamp is reduced by the total dimming adjustment value. Calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray value, the limited gray value and the sum of the grays of the three light sources, and specifically calculating the total dimming adjustment value of the moving head lamp according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Gray scale for the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Adjusting the total dimming value; d3Is the defined gray value, and D3＜765。
In this embodiment, since the step 102 can keep the color after the stroke is limited, and the step 103 is combined with the step 102, when the gray levels of the three light sources CMY of the moving head light are added, a light-off state can be achieved, and the color is uniform and non-color-cast.
For further explanation of the working principle and the flow steps of the control method of the present invention, please refer to the following examples.
1. The gray scale and total stroke of each light source in the CMY function are detected firstly, and the light source comprises a C color light source, an M color light source and a Y color light source. Judging whether the sum of the gray levels of any two light sources is greater than the sum of the maximum values of the two light sources, and adjusting the total travel of the third light source to be the corresponding limited travel, namely, if the sum of the gray levels of any two light sources is greater than or equal to the sum of the maximum values of the two light sources, the travel of the third light source is limited, and if the sum of the gray levels of any two light sources is less than the sum of the maximum values of the two light sources, the travel of the third light source is not limited. See the following table for details:
FIG. 3
Several conditions are preset in the table for the gray scale and the total travel of the three light sources. For example, when the gray scale of the C-light source is 255 and the gray scale of the M-light source is 255, the sum of the gray scales of the C-light source and the M-light source is 510, and the total stroke of the Y-light source can only be the preset limit stroke 190. When the gray scale of the C light source is 255 and the gray scale of the M light source is 254, the sum of the gray scales of the C light source and the M light source is less than 510, and the total travel of the Y light source is 255, namely the whole process can be completed.
2. When the sum of the gray levels of the three light sources is larger than a preset limit gray value, the gray levels of the three light sources, the current total dimming gray level and the limit gray value are substituted into a specific formula, the total dimming adjustment value of the moving head lamp is calculated, and the current total dimming gray value of the moving head lamp is reduced according to the calculated total dimming adjustment value of the moving head lamp. The formula for calculating the total dimming adjustment value of the moving head lamp is concretely shown as follows;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Is the gray scale of the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Is the total dimming adjustment value; d3Is the defined gray value, and D3Is less than 765. Detailed description of the inventionFor details see the following table:
FIG. 4
Wherein, the table gives a preset value to the gray scale, the limiting gray scale, the total dimming gray scale and the total dimming adjustment value of the three light sources. The gray levels of the three light sources in the table are added to 760 which is larger than the limit gray level value 700, then the values are substituted into the formula to calculate the total dimming adjustment value to 19.6, and the current total dimming gray level value of the moving head lamp is reduced according to the calculated total dimming adjustment value of the moving head lamp, namely the total dimming gray level is subtracted by the total dimming adjustment value.
Referring to fig. 2, fig. 2 is a schematic block diagram of a moving head light CMY gradient control device according to the present invention, and as shown in fig. 2, the moving head light CMY gradient control device includes:
the detection module 201: the system is used for detecting the gray scale and the total travel of each light source in the CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are set to be maximum values, the maximum value of the gray scale and the stroke of each light source is 255, and the limiting stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke; since the gray scale and the total stroke of each light source in the moving head light CMY function may be different, the gray scale and the total stroke of each light source in the moving head light CMY function are determined by the detection module.
The stroke adjustment module 202: the system is used for adjusting the total stroke of the third light source to be the corresponding limit stroke according to the sum of the gray levels of any two light sources; the stroke adjustment module includes: a limiting unit and a non-limiting unit; the limiting unit is used for adjusting the total stroke of the third light source to the corresponding limiting stroke when the sum of the gray levels of any two light sources is greater than or equal to a preset first threshold value, and the stroke above the limiting stroke does not react; the non-limiting unit is used for not adjusting the total stroke of the third light source when the sum of the gray scales of any two light sources is smaller than the first threshold. The preset first threshold is 510, and when the gray-level values of any two light sources reach the limit values, the stroke of the third light source is limited.
The dimming module 203: and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head lamp according to the gray levels of the three light sources. And when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray level value, the limit gray level value and the sum of the gray levels of the three light sources, and reducing the current total dimming gray level value of the moving head lamp by the total dimming adjustment value. Calculating the total dimming value of the moving head lamp according to the current total dimming gray value, the limited gray value and the sum of the grays of the three light sources, and specifically calculating the total dimming adjustment value of the moving head lamp according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Is the gray scale of the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Is the total dimming adjustment value; d3Is the defined gray value, and D3＜765。
To sum up, the invention provides a method, a device, equipment and a storage medium for controlling CMY gradual changes of moving head lamps. Detecting the gray scale and the total travel of each light source in the CMY function; according to the sum of the gray levels of any two light sources, the total stroke of the third light source is adjusted to be the corresponding limited stroke, so that the stroke after the stroke is limited can keep the color unchanged; and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head light according to the gray levels of the three light sources, so that the color is uniform and does not deviate. The invention can solve the color cast and uneven effect defects of the prior moving head lamp CMY without changing CMY hardware.
The above embodiments are merely illustrative of the method and the structural efficacy of the present invention, and it should be noted that those skilled in the art can make various modifications and substitutions without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A moving head lamp CMY gradual control method is characterized by comprising the following steps:
detecting the gray scale and the total travel of each light source in the CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are provided with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke;
adjusting the total stroke of a third light source to be the corresponding limit stroke according to the sum of the gray scales of any two light sources;
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, reducing the total dimming gray level value of the moving head light according to the gray levels of the three light sources.
2. A moving head light CMY gradual control method according to claim 1, characterized in that the total stroke of the third light source is adjusted to its corresponding limit stroke according to the sum of the gray levels of any two light sources, specifically:
when the sum of the gray levels of any two light sources is greater than or equal to a preset first threshold value, adjusting the total stroke of a third light source to be a corresponding limited stroke;
and when the sum of the gray scales of any two light sources is smaller than the first threshold value, the total stroke of the third light source is not adjusted.
3. A moving head light CMY gradation control method as claimed in claim 1, wherein when the sum of the grays of the three light sources is greater than a preset defined grayscale value, then the total dimming grayscale value of the moving head light is decreased according to the grays of the three light sources, specifically:
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray level value, the limit gray level value and the sum of the gray levels of the three light sources, and reducing the current total dimming gray level value of the moving head lamp by the total dimming adjustment value.
4. A moving head light CMY fade control method according to claim 3, characterized in that said calculating of the total dim adjustment value of the moving head light according to the current total dim gray value, the defined gray value and the sum of the gray values of the three light sources is specifically:
calculating a total dimming adjustment value of the moving head light according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Gray scale for the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Is the total dimming adjustment value; d3Is the defined gray value, and D3＜765。
5. A moving head lamp CMY gradual control device is characterized by comprising: detection module, stroke adjustment module and module of adjusting luminance specifically do:
the detection module is used for detecting the gray scale and the total stroke of each light source in CMY function; the light sources comprise C color light sources, M color light sources and Y color light sources, the gray scale and the stroke of each light source are set with maximum values, and the limited stroke of each light source is smaller than or equal to the maximum value of the corresponding stroke;
the stroke adjusting module is used for adjusting the total stroke of a third light source to the corresponding limit stroke according to the sum of the gray levels of any two light sources;
and the dimming module is used for reducing the total dimming gray value of the moving head lamp according to the gray values of the three light sources when the sum of the gray values of the three light sources is greater than a preset limit gray value.
6. A moving head light CMY fade control device according to claim 5, wherein,
the stroke adjustment module includes: a limiting unit and a non-limiting unit;
the limiting unit is used for adjusting the total stroke of the third light source to the corresponding limiting stroke when the sum of the gray levels of any two light sources is greater than or equal to a preset first threshold;
the non-limiting unit is used for not adjusting the total stroke of the third light source when the sum of the gray scales of any two light sources is smaller than the first threshold.
7. A moving head light CMY gradual control device according to claim 5, characterized in that the dimming module is configured to reduce the total dimming grayscale value of the moving head light according to the grays of the three light sources when the sum of the grays of the three light sources is larger than a preset defined grayscale value, specifically:
and when the sum of the gray levels of the three light sources is greater than a preset limit gray level value, calculating the total dimming adjustment value of the moving head lamp according to the current total dimming gray level value, the limit gray level value and the sum of the gray levels of the three light sources, and reducing the current total dimming gray level value of the moving head lamp by the total dimming adjustment value.
8. A moving head light CMY fade control device according to claim 7, wherein said calculating the total dimming adjustment value of the moving head light according to the current total dimming gray value, the defined gray value and the sum of the gray values of the three light sources is specifically:
calculating a total dimming adjustment value of the moving head lamp according to the following calculation formula;
D2＝[765-(C1+M1+Y1)]*[D1/(765-D3)]
in the formula, C1Is the gray scale of the C color light source; m1Is the gray scale of the M color light source; y is1Is the gray scale of the Y color light source; d1The current total dimming gray value is obtained; d2Adjusting the total dimming value; d3Is the defined gray value, andD3＜765。
9. a terminal device comprising a processor, a memory and a computer program stored in said memory and configured to be executed by said processor, said processor implementing a moving head light CMY fade control method according to any one of claims 1 to 4 when executing said computer program.
10. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored computer program, wherein the computer program when running controls a device where the computer readable storage medium is located to perform a moving head light CMY fade control method according to any one of claims 1-4.
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| AU2009356942A1 (en) * | 2009-12-17 | 2012-08-02 | Wing King Tong Printing Limited | Multi-primary colors printing quality control method |
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| CN101453813A (en) * | 2007-12-04 | 2009-06-10 | 三星电子株式会社 | Light source module, method for driving the light source module, display device having the light source module |
| CN201416832Y (en) * | 2009-04-16 | 2010-03-03 | 广州市浩洋电子有限公司 | Column-light head-shaking light |
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