System and method for color characterization using fuzzy pixel classification with application in color matching and color match location

摘要: A system and method for measuring the similarity of multiple-color images locating regions a target image having color information that matches, at least to degree, template image. characterization operates characterize colors an measure between images. For each pixel, determines category or bin respective pixel based on HSI values wherein is one plurality possible categories in space. In various embodiments, weight may be fractionally distributed across categories, e.g., as determined by applying fuzzy classification with membership function. The percentage pixels assigned then determined. used feature vector represent quantitative measurement computed distance their vectors. Once has been characterized, searched order locate within matching information. embodiment, coarse-to-fine heuristic utilized, which multiple search stages decreasing granularity are performed. first-stage operate identify list candidate match city-block using sub-sampling scheme. These examined further detail determine final matches.