The Retinex is an image enhancement algorithm that improves the brightness,contrast and sharpness.Many potential applications require the use of Retinex processing at video frame rates.It is difficult to achieve because the algorithm contains a large number of complex computations and data transfers.Accordingly,a fast computation algorithm executing on TS201 is proposed.The algorithm adopted series optimizations,such as SingLeton structure,paralleling of assembly instructions,loop unrolling and software pipelining.The input image is segmented in four blocks because of the limited memory of TS201.The experiment results prove that the algorithm can process a 512×256 image in 18.5 ms operating at a clock rate of 500 MHz.
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雍杨,黄宝平,王兵学,黄自力. Retinex图像增强算法在TS201上的实时实现[J].激光与红外,2012,42(2):200~204 YONG Yang, HUANG Bao-ping, WANG Bing-xue, HUANG Zi-li. Real-time implementation of Retinex algorithm on TS201[J]. LASER & INFRARED,2012,42(2):200~204