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We propose the general construction formula of shape-color primitives byusing partial differentials of each color channel in this paper. By using allkinds of shape-color primitives, shape-color differential moment invariants canbe constructed very easily, which are invariant to the shape affine and coloraffine transforms. 50 instances of SCDMIs are obtained finally. In experiments,several commonly used color descriptors and SCDMIs are used in imageclassification and retrieval of color images, respectively. By comparing theexperimental results, we find that SCDMIs get better results.

Shape-Color Differential Moment Invariants under Affine Transformations