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17 January 2005 Quantization of accumulated diffused errors in error diffusion
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Proceedings Volume 5667, Color Imaging X: Processing, Hardcopy, and Applications; (2005)
Event: Electronic Imaging 2005, 2005, San Jose, California, United States
Quantization of the accumulated diffused error (ADE) is an effective means to reduce on-chip storage in a hardware implementation of error diffusion. A simple uniform quantizer can yield a factor of 2 savings with no apparent loss in image quality. Nonuniform quantizers with memory that depend on the quantizer index or various features13 can yield even greater savings -- up to a factor of 4, with essentially no loss in image quality. However, these quantizers depend on the trainability of the tone-dependent error diffusion (TDED) framework to achieve this level of quality. In addition, the design of the quantizers must be coupled to that of the TDED parameters in either a sequential or iterative fashion.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ti-chiun Chang and Jan P. Allebach "Quantization of accumulated diffused errors in error diffusion", Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005);


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