Patent ID: 7684616
Filing Date: 2010-03-23
Classification: G06F,G06K,G06T

Abstract:
1. A method of representing a group of images using at least one processor to process signals corresponding to the images, the method comprising obtaining, using a processor, an image dominant colour representation for each image in the group of images, wherein each of the image dominant colour representations has one or more components including at least one dominant colour value, and optionally for each dominant colour value, a variance indicating colour distribution variance of the image with respect to the dominant colour value, a weight indicating the influence of the dominant colour in the image, the number of dominant colours in the image, and spatial homogeneity of pixels corresponding to the dominant colors in the image; determining, using a processor, the values of one or more dominant colours for the group of images; deriving, using a processor, a group dominant colour representation expressing the group of images in terms of one or more of said dominant colour values by combining a plurality of said image dominant colour representations, wherein the combining involves calculating a weighted average of one or more of the dominant colour values, variances and weights, wherein for two dominant colours m where σ storing the group dominant colour representation as a descriptor for the group of images.