Optimized universal color palette design for error diffusion
نویسندگان
چکیده
منابع مشابه
Optimized universal color palette design for error diffusion
Currently, many low cost computers can only simultaneously display a palette of 256 colors. However, this palette is usually selectable from a very large gamut of available colors. For many applications, this limited palette size imposes a significant constraint on the achievable image quality. In this paper, we propose a method for designing an optimized universal color palette for use with ha...
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Currently, many low-cost computers can only simultaneously display a palette of 256 colors. However, this palette is usually selectable from a very large gamut of available colors. For many applications, this limited palette size imposes a significant constraint on the achievable image quality. We propose a method for designing an optimized universal color palette for use with halftoning method...
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color halftoning, error diffusion, minimal brightness variation criterion Error Diffusion is a high-performance halftoning method in which quanitization errors are diffused to “future” pixels. Originally intended for grayscale images, it is traditionally extended to color images by Error-Diffusing each of the three color planes independently (separable Error Diffusion). In this report we show t...
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Grayscale halftoning converts a continuous-tone image (e.g., 8 bits per pixel) to a lower resolution (e.g., 1 bit per pixel) for printing or display. Grayscale halftoning by error diffusion uses feedback to shape the quantization noise into high frequencies where the human visual system (HVS) is least sensitive. In color halftoning, the application of grayscale error-diffusion methods to the in...
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Displaying natural images on an 8-bit computer monitor requires a substantial reduction ofphysically distinct colors. Simple minimum mean squared error quantization with 8 levels of red and green and 4 levels of blue yields poor image quality. A powerful means to improve the subjective quality of a quantized image is error diffusion. Error diffusion works by shaping the spectrum of the display ...
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ژورنال
عنوان ژورنال: Journal of Electronic Imaging
سال: 1995
ISSN: 1017-9909
DOI: 10.1117/12.204685