Color restoration method of printing in machine visual detection  

作　　者：刘澎 赵宁 任玲辉 徐倩倩 

机构地区：[1]Northwestern PolytechnicM University, Xi'an 710072, China [2]College of Printing and Packaging Engineering, Xi'an University of Technology, Xi'an 710048, China [3]Xi'an Aaerospace-huayang Printing & Packaging Machinery co., ltd, Xi'an 710100, China

出　　处：《Chinese Optics Letters》2014年第A01期98-103,共6页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China （Grant No. 51275406） and the National Science and Technology Support Program of China （Grant No. 2013BAF04B01）.

摘　　要：It is found that application of Retinex color constancy algorithm in machine vision can weaken light interference on printing chromatic aberration. We propose a new method of fusion of Weighted Least Squares and Multi-Scale Retinex in the L＊a＊b＊ color space for the purpose of further enhancing the degree of recovery of prints colors. The effectiveness of the proposed method is tested against experiments on images of tile same original print acquired in different illuminants. The method exhibits a good application prospect in machine vision in virtue of its great color consistency capability in maintaining the color of the original print.It is found that application of Retinex color constancy algorithm in machine vision can weaken light interference on printing chromatic aberration. We propose a new method of fusion of Weighted Least Squares and Multi-Scale Retinex in the L＊a＊b＊ color space for the purpose of further enhancing the degree of recovery of prints colors. The effectiveness of the proposed method is tested against experiments on images of tile same original print acquired in different illuminants. The method exhibits a good application prospect in machine vision in virtue of its great color consistency capability in maintaining the color of the original print.

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论] TS805[自动化与计算机技术—计算机科学与技术]