METHODS FOR MULTISOURCE COLOR NORMALIZATION

A method for improvement of the consistency of color and brightness across boundaries of multicamera and/or multidisplayed overlapping or near overlapping composite images, reduction of objectionable artifacts at overlapping image seams of composite images, adjustment of color and brightness/intensity on either side of overlapping image seams, application of color correction across a composite image, reduction of color and intensity mismatches of composite images, gradual change of color across image seams of a composite image, including altering color outside of overlap regions is provided so that the seams are less discernible and to avoid sharp color changes across a composite or mosaic image are reduced or avoided. Color difference between two source images which form a composite is estimated by looking at color pixels from each source image region, determining a centroid of a cluster in a color space formed by the pixels of each source image, and determining the difference between cluster centroids for overlapping or nearly overlapping source image regions which are a measure of the vector color difference between such regions. The vector color difference between at least two overlapping source image regions are interpolated or mapped across those images.