计算机与数字工程2019，Vol.47Issue(6)：1466-1471,6.DOI:10.3969/j.issn.1672-9722.2019.06.037
基于Hough变换的红头文件识别算法
Red Heading Documents Recognition Algorithm Based on Hough Transform
摘要
Abstract
Line detection has always been an important step in image processing. The most commonly used line detection tech?nique is the Hough transform,which converts the problem of image space detection line to the peak detection problem in the parame?ter space. Each non-zero pixel in the image space will vote for its corresponding accumulator in the parameter space. During the vot?ing process,most of the votes that are far from the peak are unnecessary,and these invalid votes reduce the conversion speed. A method for filtering out excess lines and most noise outside the specified direction based on the specified short line form in the image space is proposed,the voting amount is reduced,and the voting range can be limited to the specified range. The experimental re?sults confirm the effectiveness of the method.关键词
图像处理/直线检测/Hough变换/参数空间/直线形态过滤Key words
image processing/line detection/Hough transform/parameter space/line shape filtering分类
数理科学引用本文复制引用
张雨,甘刚..基于Hough变换的红头文件识别算法[J].计算机与数字工程,2019,47(6):1466-1471,6.基金项目
"十三五"国家密码发展基金项目(编号:MMJJ20180244)资助. （编号:MMJJ20180244）
