一种快速自适应直方图均衡叠代算法  

A fast iterative algorithm for adaptive histogram equalization

作　　者：曹新华[1] 刘新明[1] 邓振生[1] 蒋大宗[1] 郑崇勋[1] 

机构地区：[1]西安交通大学,710049

出　　处：《中国医疗器械杂志》1997年第1期8-10,共3页Chinese Journal of Medical Instrumentation

摘　　要：本文提出了一种快速的自适应直方图均衡叠代算法（FAHE）。该算法基于滑动窗口移动前后两个直方图的相关性。同基本的AHE方法相比，对于一256灰阶的512×512图象，在486／33兼容机上采用65×65的滑动窗口，FAHE的计算时间从原来的大约5小时降低到4分钟。In this paper, we propose an iterative algorthm called FAHE., which is based on the relativity between the current local histogram and the one be fore the sliding window moving. Comparing with the basic AHE,the computing time of FAHE is decreased from 5 hours to 4 minutes on a 486dx/33 compatible computer, whenusing a 65×65 sliding window for a 512×512 with 8 bits gray-level range.

关 键 词：X线胸片 自适应 直方图均衡 图象增强 叠代 

分 类 号：R811[医药卫生—放射医学] R816.4[医药卫生—临床医学]