A color measurement device and method based on an embedded camera

Abstract

The invention discloses an embedded camera based chromaticity measuring device and method. The device comprises a camera module, a host computer and a display module. The camera module is used for collecting images in real time. The host computer comprises an embedded control module and an auxiliary module. The control module is used for real-time collection of images of a to-be-measured object, extraction of a region of interest and calculation of the chromaticity information of the images. The auxiliary module is used for communicating with the outside and providing a standard light source and a standard power supply. The display module is used for displaying the collected images in real time and displaying the chromaticity information of the images. The host computer is respectively connected with the camera module and the display module. The image acquisition module and the processing module of the invention are integrated in the embedded control module, thereby reducing the imagetransmission time and improving the calculation efficiency. The integrated device is small in volume, convenient to use, simplifies the installation process and reduces the installation time. A chromaticity measurement algorithm is optimized and the chromaticity measurement precision is improved. The device can provide real time measurement of chromaticity information and is high in reliability, long in service life and strong in practicability.

Description

technical field [0001] The invention belongs to the technical field of chromaticity measurement, and relates to a chromaticity measurement device and method, in particular to a chromaticity measurement device and method based on an embedded camera. Background technique [0002] Color is used in a wide range of industries. In addition to ink printing and paper dyeing, there are also industrial productions such as leather, textiles, and metal baking varnishes. In order to ensure the color consistency between the product and the standard sample, an efficient and high-precision color measurement method is required. [0003] There are three main methods of color measurement: visual method, photoelectric integration method and spectrophotometric method. In foreign countries, the visual color measurement method has been gradually eliminated. At present, the physical color measurement method of the instrument is mainly used, but this method of measuring color by the instrument is s...

AI Technical Summary

Problems solved by technology

[0012] The technical problems to be solved in the present invention are: 1. The traditional polynomial regression method has low modeling accuracy in the entire chromaticity space; 2. The detection module and the chromaticity display module of the existing chromaticity measurement system are placed separately and the image acquisition module and processing The modules are separated, the erection process is complicated, the device is expensive, and the work efficiency is low and the mobility is poor

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