Contrast enhancement technique based on local detection of edges
Computer Vision, Graphics, and Image Processing
Recursive sub-image histogram equalization applied to gray scale images
Pattern Recognition Letters
Multilevel thresholding for image segmentation through a fast statistical recursive algorithm
Pattern Recognition Letters
ACM SIGGRAPH 2008 papers
Bas-Relief Generation Using Adaptive Histogram Equalization
IEEE Transactions on Visualization and Computer Graphics
A histogram modification framework and its application for image contrast enhancement
IEEE Transactions on Image Processing
Engineering Applications of Artificial Intelligence
Contrast enhancement using brightness preserving bi-histogram equalization
IEEE Transactions on Consumer Electronics
Image enhancement based on equal area dualistic sub-image histogram equalization method
IEEE Transactions on Consumer Electronics
IEEE Transactions on Consumer Electronics
A Dynamic Histogram Equalization for Image Contrast Enhancement
IEEE Transactions on Consumer Electronics
IEEE Transactions on Consumer Electronics
IEEE Transactions on Consumer Electronics
Image enhancement via adaptive unsharp masking
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
An Optimal Fuzzy System for Color Image Enhancement
IEEE Transactions on Image Processing
Detection of Gait Characteristics for Scene Registration in Video Surveillance System
IEEE Transactions on Image Processing
Correction of Simple Contrast Loss in Color Images
IEEE Transactions on Image Processing
An advanced contrast enhancement using partially overlapped sub-block histogram equalization
IEEE Transactions on Circuits and Systems for Video Technology
DEWS: A Live Visual Surveillance System for Early Drowning Detection at Pool
IEEE Transactions on Circuits and Systems for Video Technology
Simultaneous image color correction and enhancement using particle swarm optimization
Engineering Applications of Artificial Intelligence
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Histogram equalization is a well-known and effective technique for improving the contrast of images. However, the traditional histogram equalization (HE) method usually results in extreme contrast enhancement, which causes an unnatural look and visual artifacts of the processed image. In this paper, we propose a novel histogram equalization method that is composed of an automatic histogram separation module and an intensity transformation module. First, the proposed histogram separation module is a combination of the proposed prompt multiple thresholding procedure and an optimum peak signal-to-noise ratio (PSNR) calculation to separate the histogram in small-scale detail. As the final step of the proposed process, the use of the intensity transformation module can enhance the image with complete brightness preservation for each generated sub-histogram. Experimental results show that the proposed method not only retains the shape features of the original histogram but also enhances the contrast effectively.