A method for characterizing an image where a number of test areas of predefined shape and size are located on the image. The color or the texture of the image over each of the test areas is quantified. The image can be characterized by statistical descriptions of the frequency distribution of color or...http://www.google.com.hk/patents/US6445835?utm_source=gb-gplus-share專利 US6445835 - Method for image characterization using color and texture statistics with embedded spatial information
