23‐2: An Adaptive Contrast Enhancement of Image Using Multi‐Scale Histogram Representation
Yufeng Jin, Shen-Sian Syu, Ming‐Jong Jou · SID Symposium Digest of Technical Papers · 2017
A novel method is presented to enhance images using histogram equalization and provide excellent performance on local contrast improvement. The proposal includes multi‐scale function to make local LUT (Look‐Up Table; LUT) with global information to reduce boundary contour issue, and Gaussian filter is applied to reduce hardware cost. Furthermore, an adaptive parameter adjustment mechanism is also employed to optimize the enhancement performance under various scenes.