1 September 1996 Detail-enhanced error diffusion
Author Affiliations +
We propose a modification of the standard error-diffusion technique for image halftoning that enhances edges and textures by reducing the diffusion of the quantization error across edges. It employs a quadratic Volterra filter that extracts features from the original grayscale image and adapts the feedback loop to the local characteristics of the image. The additional computational complexity is small because the filter only uses a 3 X 3 region of support. Experimental comparisons of various techniques show that our modified error diffusion algorithm produces sharper results with improved contrast and detail resolution for both gray-scale and color images.
Stefan Thurnhofer, Stefan Thurnhofer, Sanjit K. Mitra, Sanjit K. Mitra, } "Detail-enhanced error diffusion," Optical Engineering 35(9), (1 September 1996). https://doi.org/10.1117/1.600861 . Submission:


Encoding Of Subband Images Using Adaptive Vector DPCM
Proceedings of SPIE (January 17 1988)
Analysis of color error diffusion with vector error filters
Proceedings of SPIE (January 15 2006)
Optimized error diffusion based on a human visual model
Proceedings of SPIE (August 26 1992)
Symmetric edge enhancement in error diffusion
Proceedings of SPIE (December 20 1999)

Back to Top