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- W56605854 abstract "A well-known challenge with local (adaptive) histogram equalization (LHE) isover-enhancement (generation of spurious details) in smooth areas. In thispaper, we show that the LHE problem has many solutions among which we canselect the ones maximizing PSNR or structural similarity (SSIM) with the inputimage. Such solutions show less over-enhancement and are of better quality ascompared to those of the traditional LHE. Another interesting LHE solutionyields a globally equalized histogram. The proposed method can be readilyadapted to histogram specification problem. Also a smooth and fast(proportional to image size) local histogram estimation is introduced based onrecursive filtering. Index Terms: perceptual image processing, block overlappedhistogram modification or specification, contrast enhancement, propagationfiltering." @default.
- W56605854 created "2016-06-24" @default.
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- W56605854 date "2009-02-02" @default.
- W56605854 modified "2023-09-27" @default.
- W56605854 title "On Optimization of Local Histogram Equalization" @default.
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