计算机科学
直方图
图像(数学)
模式识别(心理学)
均衡(音频)
颜色归一化
图像增强
二值图像
彩色图像
像素
作者
Yu Wang,Qian Chen,Baeomin Zhang
出处
期刊:IEEE Transactions on Consumer Electronics
[Institute of Electrical and Electronics Engineers]
日期:1999-02-01
卷期号:45 (1): 68-75
被引量:931
摘要
Histogram equalization is a simple and effective image enhancing technique. But in some conditions, the luminance of an image may be changed significantly after the equalizing process, this is why it has never been utilized in a video system in the past. A novel histogram equalization technique, equal area dualistic sub-image histogram equalization, is put forward in this paper. First, the image is decomposed into two equal area sub-images based on its original probability density function. Then the two sub-images are equalized respectively. Finally, we obtain the results after the processed sub-images are composed into one image. The simulation results indicate that the algorithm can not only enhance the image information effectively but also preserve the original image luminance well enough to make it possible to be used in a video system directly.
科研通智能强力驱动
Strongly Powered by AbleSci AI