VISUAL SEARCH UTILIZING COLOR DESCRIPTORS

摘要

Various embodiments provide a method for computing color descriptors of product images. For example, a number of fine color representatives can be determined to describe color variation in an image as a histogram by assigning a saturation value and a brightness value to a plurality of color hues. For each pixel of the image, the closest color among a defined fine color representative set is computed. In this example, each of the pixels is assigned a color ID corresponding to their closest matching fine color representative and at least one family color ID corresponding one or more pure color families. In this example, a histogram of the color representatives and a histogram for the color families are computed. A single color vector descriptor for the image is then determined by combining the family histogram with the color representative histogram.

主权项

1. A computer-implemented method, comprising:
under the control of one or more computer systems configured with executable instructions, defining a number of color families, each color family including a plurality of color values; determining a closest color value of the plurality of color values for each of a set of representative colors, the closest color value comprising a respective color included in a color space, the respective color being within a distance threshold of a second color in the color space, the color space corresponding to the plurality of color values for each of the set of representative colors; and assigning each of the set of representative colors to one or more color families of the number of defined color families associated with the determined closest color value.