期刊
IEEE TRANSACTIONS ON IMAGE PROCESSING
卷 10, 期 6, 页码 932-937出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/83.923289
关键词
classification color spaces; color texture analysis; evaluation; Gabor filtering
RGB, a nonuniform color space, is almost universally accepted by the image processing community as the means for representing color. On the other hand, perceptually uniform spaces, such as L*ab*, as well as approximately-uniform color spaces, such as HSV, exist, in which measured color differences are proportional to the human perception of such differences. This paper compares RGB with L*a*b* and HSV in terms of their effectiveness in color texture analysis, There has been a limited but increasing amount of work on the color aspects of textured images recently. The results have shown that incorporating color into a texture analysis and recognition scheme can be very important and beneficial. The presented methodology uses a family of Gabor filters specially tuned to measure specific orientations and sizes within each color texture. Effectiveness is measured by classification performance of each color space, as well as by classifier-independent measures. Experimental results are obtained with a variety of color texture images. Percuptually uniform spaces are shown to outperform RGB in many cases.
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