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- W40277794 abstract "Today many algorithms for monochrome images have been developed based on the information provided by the gradient vector. However, these algorithms can not be applied to color images without an accurate approximation of the color gradient vector argu- ment. Moreover, there is a great number of applications that require to know with the maximum accuracy as possible the direction of the color variation in color images. This paper presents a new break- through in our work on the approximation of the argument of the color gradient vector. Taking into consideration that Hue and Satu- ration provide very useful basis for judging color uniformity, and that in the Smith's HSI color space there is a close relationship between chromaticity and how humans perceive colors, in our proposal the ar- gument of the Chromaticity gradient vector is approached based on the Hue and Saturation information. Moreover, we present a fuzzy measure of the quality or reliability of the proposed approach that, considering the inherent vagueness of the chromaticity values of the image pixels, provides us with a credibility-accuracy degree of the obtained values. Keywords— Color gradient, Color image processing, Gradient argument, Gradient reliability, Gradient vector." @default.
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- W40277794 date "2009-01-01" @default.
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- W40277794 title "On the reliability of the color gradient vector argument approach." @default.
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