|Table of Contents|

Infrared Image Histogram-dealing Technique Based on Gray Redundancy

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2007年02期
Page:
176-179
Research Field:
Publishing date:
2007-04-30

Info

Title:
Infrared Image Histogram-dealing Technique Based on Gray Redundancy
Author(s):
WANG Chun-ping1SUN Guo-zheng1CHEN Qian2
1.China Research and Development Academy of Machinery Equipment,Beijing 100089,China;2.School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
Keywords:
infrared image histogram equalization image enhancement gray redundancy
PACS:
TP391.41
DOI:
-
Abstract:
This paper puts forward an improved histogram equalization algorithm based one limina-ting the grayred undancy. According to the distributing rule of infrared imagegray, the zerogray is compressed absolutely, and the appropriate threshold is fixed. The graygrade less than thresholdis considedas invalid grade and is replaceed by threshold graygrade. The validgray gradsare equ-i poised. This algorith mconquers the gray discontinuity and drop. This algorithmhas achieved the elimination of grayred undancyand the improvement of image quality.

References:

[ 1] StarkJA. Adaptive image contrast enhancement using generalizations of histogram equalization [ J]. IEEE TransOnImageProcessing, 2000, 9( 5): 889-896.
[2] 陈钱,柏连发, 张保民. 红外图像直方图双向均衡技术研究[ J]. 红外与毫米波学报, 2003, 22( 6): 428-430.
[ 3] 李耀辉,刘保军. 基于直方图均衡的图像增强[ J]. 华北科技学院学报, 2003, 5(2): 65-67.
[ 4] 夏德深,傅德胜. 现代图像处理技术与应用[M]. 南京:东南大学出版社, 2001.
[ 5] CasellesV, Lisani JL, Morel JM, et a.l Shape pre-serving local histogrammodification[ J]. IEEETrans ImageProcessing, 1999, 8( 2): 220- 230.

Memo

Memo:
-
Last Update: 2007-04-30