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Research and evaluation criteria of color quantization algorithms

2013-09-19
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Research and evaluation criteria of color quantization algorithms: This article analyzes the background and research issues of color quantization, explains the classification of the main color quantization algorithms and the evaluation criteria of quantization algorithms, and introduces the application fields of color quantization. Keywords: color quantization; bitmap; pixel With the development of computer technology, most information has been managed digitally, and most of it is saved in image format. In order to maximize the integrity of image information, most color images use 2 or 4-bit true color to store images. However, in many cases, such as when displaying true color images in a display system that can only display 256 colors, we must use 8-bit 256-color images. At this time, it is necessary to convert 2 or 4-bit true color images into 8-bit color images, that is, to perform color reduction processing. This process of representing an image that originally has rich colors using only a small number of color sets and trying to maintain the realistic display effect of the original image in this process is called color quantization.

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