Image processing ASIC for real-time contrast enhancement

An ASIC chip set that implements adaptive local contrast enhancement for real-time image processing is presented. The contrast enhancement is based on a nonlinear mapping M(A, sigma ,P), where A is an average, sigma is a standard deviation, and P is a center pixel over a 9*9 window. The throughput rate is 100 ns per pixel. A dynamic programming technique and pipelining are used to minimize the space-time constraint in the implementation.<
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