Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1999.06a
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- Pages.569-574
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- 1999
Color Image Quantization and Dithering Method based on HVS Characteristics
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Ha, Yeong-Ho
(School of Electronic and Electrical Engineering, Kyungpook National University)
- Published : 1999.06.01
Abstract
New methods for both color palette design and dithering based on human visual system (HVS) characteristics are proposed. Color quantization for palette design uses the relative visual sensitivity and spatial masking effect of HVS. The dithering operation for printing uses nonlinear quantization, which considers the overlapping phenomena among neighbor printing dots, and then a modified dot-diffusion algorithm is followed to compensate the degradation produced in the quantization process. The proposed techniques can produce high quality image in the low-bit color devices.