基于机器视觉的色差检测算法

摘要

Algorithm for color difference detection based on machine vision is studied to solve the problem of color difference detection in metal printing. By printing color mark in metal blank area,capture color mark areas on metal printing products using industrial CCD cameras,digital image processing technique is applied to extract color. Use color difference detection algorithm based on HSV color space and color difference detection algorithm based on CIELAB color space,analyze color difference detection results in two kinds of color space,using the method combining the two kinds of color space detection algorithms,implement rapid and effective detection,and at the same time,it can ensure accuracy of detection results.%针对金属印刷质量中的色差检测问题，采用机器视觉的技术对色差检测算法进行了研究。通过在金属印刷品的留白区域印刷色标，使用工业CCD相机采集金属印刷产品上的色标区域，使用数字图像处理技术提取色标。使用了基于HSV颜色空间的色差检测算法和基于CIELAB颜色空间的色差检测算法，分析了两种颜色空间下色差检测的实验结果，采用两种颜色空间检测算法相结合的方法，实现对色差合理有效的快速检测，同时能保证检测结果的准确性。