An evaluation and study of detail contrast preservation and color consistency in decolorization

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Shenglin Peng, Tong Gao, Shuyi Qu, Zhe Yu, Jun Wang, Jinye Peng

Published: 2026, Last Modified: 21 Nov 2025Digit. Signal Process. 2026EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Enhanced detail contrast preservation capability of the RTCP decolorization algorithm.•Clustering-guided decolorization for enhanced color consistency.•Locally adaptive strategy improves detail preservation.•Weight-optimized method boosts contrast retention.•Novel D-C2G-SSIM metric better evaluates contrast preservation.