The features of 2D images based on the bispectrum invariant to similarity transformations (shift, rotation and scaling) are applied to the classification of color image data. The invariant features are calculated with the crossbispectra between color values, which retain information
on spatial third-order correlations of color images. Three kinds of color systems (the
Yo Horikawa, "Comparison of Combining Methods in Invariant Color Texture Classification with Cross-Bispectral Features" in Proc. IS&T CGIV 2002 First European Conf. on Colour in Graphics, Imaging, and Vision, 2002, pp 424 - 428, https://doi.org/10.2352/CGIV.2002.1.1.art00090