Color identification method

A technology of color recognition and three primary colors, applied in the field of color recognition, can solve the problem of low accuracy and achieve the effect of improving accuracy and succinct algorithm

Inactive Publication Date: 2018-11-20
张洋 +2
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  • Application Information

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Problems solved by technology

Due to the change of light intensity caused by distance, the accuracy of measurement is not high

Method used

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Embodiment Construction

[0021] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0022] figure 1 A flow chart of an embodiment of the color recognition method according to the present application is shown, and the color recognition method includes the following steps:

[0023] Step 101 , generating red photoelectric signals, green photoelectric signals, and blue photoelectric signals of the object to be measured according to the sensed ambient light and the reflected light of the object to be measured under the detection light of the three primary colors of red, green and blue.

[0024] In the RGB color mode, the three primary colors of ligh...

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Abstract

The invention discloses a color identification method. The color identification method according to one embodiment comprises the steps of generating a red-light electric signal, a green-light electricsignal and a blue-light electric signal of a to-be-identified object according to sensing ambient light and the reflected light of the to-be-identified object in the detecting light which comprise three primary colors of red, green and blue; multiplying the red-light electric signal, the green-light electric signal and the blue-light electric signal by an RGB calibration coefficient, thereby obtaining a calibrated red-light electric signal, a calibrated green-light electric signal and a calibrated blue-light electric signal; according to the calibrated red-light electric signal, the calibrated green-light electric signal and the calibrated blue-light electric signal, calculating the red light ratio, the green light ratio and the blue light ratio of the to-be-identified object; calculatingthe similarities of the red light ratio, the green light ratio and the blue light ratio of the to-be-identified object with the red light ratio, the green light ratio and the blue light ratio of eachsample color in a stored sample color set, and selecting the sample color with highest similarity as the color of the to-be-identified object. No matter how the distance changes, only a light strength change is caused, and the ratio among the red light, the green light and the blue light is unchanged. The color identification method improves color identification accuracy.

Description

technical field [0001] This application relates to the field of color recognition, in particular to a color recognition method. Background technique [0002] The use of electronic technology to achieve color recognition is a constantly developing technology. In the production process, the color recognition work that human eyes play a leading role is gradually replaced by color recognition sensors, such as material sorting and product quality inspection. Its application fields are constantly expanding, and the color recognition function is set in unmanned vehicles, drones, intelligent robots, and intelligent toys to increase education and fun. [0003] Various colors are formed by mixing the three primary colors of red, green and blue in different proportions. The color of an object can be calculated if the values ​​of red, green, and blue that make up each color are known. [0004] In the prior art, photoelectric conversion is performed on the received object light to be m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/50
CPCG01J3/465G01J3/50G01J2003/466
Inventor 张洋张虎姜柳
Owner 张洋
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