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We aim to study the set of color sets of continuous regions of an image given as a matrix of m rows over n≥m columns where each element in the matrix is an integer from [1,σ] named a color. The set of distinct colors in a region is called fingerprint. We aim to compute, index and query the fingerprints of all rectangular regions named rectangles. The set of all such fingerprints is denoted by F. A...
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