Multi-spectrum-based isomeric color measurement system

Abstract

The invention relates to a multi-spectrum-based isomeric color measurement system. The system comprises a feeding module, a discharging module, an imaging module, a storage module and a control module. The feeding module comprises a to-be-tested product storage bin and a material grabbing mechanical arm, wherein the to-be-tested product storage bin and the material grabbing mechanical arm are fixed to a rack. The feeding module comprises a feeding guide rail and a moving platform. The imaging module comprises a line scanning camera and a dome light source. The storage module comprises a testedproduct storage bin and a material taking mechanical arm; and the material grabbing mechanical arm is used for grabbing a to-be-tested product in the to-be-tested product storage bin to the moving platform; the moving platform moves back and forth on the feeding guide rail, and image information is acquired by the imaging module. The material taking mechanical arm is used for grabbing the to-be-tested product with acquired image information and putting the product into the tested product storage bin. According to the system, the image information is obtained through a 12-channel multi-spectral color camera is comprehensive, the spectral reflectivity of the product can be accurately obtained, and measurement is stable; the image information can be accurately converted into LAB data; in addition, uninterrupted detection of products can be achieved, and the automation degree is high.

Description

technical field [0001] The invention relates to the technical field of printed matter image imaging, in particular to a color measurement system based on multi-spectral metachromatism. Background technique [0002] In the printing industry, the requirements for color are getting higher and higher. The color quality measurement systems on the surface of traditional printed products include visual system, colorimeter measurement system, and 3-channel color camera measurement system. [0003] The visual system is to use the human eye to observe the color difference between the standard printed matter and the sample printed matter, and usually needs to be carried out under the standard light source specified by the International Color Alliance. The visual system mainly relies on the color observation experience of inspectors to judge, which is too much affected by subjective factors, the measurement efficiency is low, and a unified color quality evaluation standard cannot be fo...

AI Technical Summary

Problems solved by technology

3-channel color camera measurement system, the acquired images only have 3-channel RGB information, less information, easy to be interfered

The measurement information is inaccurate and the measurement is unstable; the spectral information of different bands cannot be effectively distinguished, and the spectral reflectance data cannot be obtained

[0006] At the same time, none of the systems in the prior art can realize uninterrupted detection of products, and the degree of automation is not high.

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