Reproduce “LoopLUT: 3D Lookup Tables with Progressive Region Refinement for Real-Time 4K Image Enhancement” on OpenResearch
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About this paper
Yang Ye, Jiajun Ma, Chen Wu, Wei Wang, Dianjie Lu, Guijuan Zhang, Linwei Fan, Zhuoran Zheng
LoopLUT enhances images with region-dependent color correction while keeping its decision process at low resolution. After a global lookup-table correction, its gates use previous enhancement states to allocate residual lookup tables across image regions. On LCDP, spatial gating improves mean per-image PSNR by 3.08 dB and wins on 213 of 218 images. Its low-resolution bottleneck limits spatial precision.
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