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In this paper, we present a new contour point distortion measurement, called accurate distortion measurement for B-spline-based shape coding (ADMBSC). Different from existing distortion measurements containing approximation, quantization or parameterization, our distortion is defined as the shortest distance from the original B-spline to the associated contour point. This is in line with the subjective-based...
Dithering has been established as an important technique for producing visually appealing images on many printing and display devices. Although various error diffusion filters have been developed for dithering, there has been in general a lack of results guided by both visual quality and objective measure on the image quality. In this paper we present a dithering method by designing the error diffusion...
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