arXiv AI By Swarnim Maheshwari, Syed Imam Ali, Vineeth N. Balasubramanian

Beyond Fixed Luminance: Towards Panchromatic and Orthochromatic Image Colorization

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arXiv:2608. 10798v1 Announce Type: cross Abstract: Most image colorization systems operate in $Lab$ space by predicting chroma ($ab$) while preserving an input-derived luminance channel ($L$).

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arXiv AI
Sep 18

Paint-Anything: Unified Any-Color Control for Image Generation and Editing

Paint-Anything introduces a unified hex-prompt interface that allows users to specify any 24‑bit hex color for both image generation and editing. The method trains on a new Paint‑500K dataset created from real images with object grounding, perceptual color labeling, and editing‑pair synthesis, and supplements this with pure‑color anchors to address shadow‑induced color inaccuracies. Evaluated on the newly proposed Any Color Benchmark (ACBench), Paint‑Anything achieves significant improvements over the base FLUX.2‑4B model, boosting T2I and editing scores by 85.3 % and 28.3 % respectively, and outperforms competing methods on the CompColor metric.

By Ji Xie, Dewei Zhou, Xinyu Huang, Zhennan Chen, Xun Wang