Tone Dependent Color Error Diiusion Literature Survey Multidimensional Dsp Project, Spring 2003 Vishal Monga
نویسنده
چکیده
Image halftoning converts a high-resolution image to a low-resolution image, e.g. an 8-bit grayscale image to a binary image, for printing and display. Conventional error di usion halftoning produces worms and other objectionable artifacts. Tone Dependent error di usion (Li and Allebach) helps reduce these artifacts by controlling di usion of quantization errors based on the input graylevel value. Allebach et al. design error lters weights and thresholds for each (input) graylevel optimized based on a Human Visual System (HVS) model. Color HVS models would signi cantly impact the design of optimum error lters for (tone-dependent) color error di usion. A survey of tone dependent grayscale halftoning methods and the linear color vision model used by Evans et al. is presented.
منابع مشابه
Tone Dependent Color Error Di usion Project Report Multidimensional DSP , Spring 2003
Conventional grayscale error di usion halftoning produces worms and other objectionable artifacts. Tone Dependent error di usion for grayscale halftoning (Li and Allebach) helps reduce these artifacts by controlling di usion of quantization errors based on the input graylevel value. Allebach et al. design error lters weights and thresholds for each (input) graylevel optimized based on a human v...
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