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Improved local histogram equalization with gradient-based weighting process for edge preservation.
Yu-Ren Lai
Ping-Chuan Tsai
Chih-Yuan Yao
Shanq-Jang Ruan
Published in:
Multim. Tools Appl. (2017)
Keyphrases
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histogram equalization
image enhancement
gray scale
edge preservation
contrast enhancement
anisotropic diffusion