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Improve Perceptual Video Quality: Skin-Tone Macroblock Detection

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By Paula Carrillo, Akira Osamoto, and Adithya K. Banninthaya
Texas Instruments
Accurate skin-tone reproduction is important in conventional still and video photography applications, but it's also critical in some embedded vision implementations; for accurate facial detection and recognition, for example. And intermediary lossy compression between the camera and processing circuitry is common in configurations that network-link the two function blocks, either within a LAN or over a WAN (i.e. "cloud"). More generally, the technique described in this document uses dilation and other algorithms to find regions of interest, which is relevant to many vision applications. And implementing vision algorithms efficiently, i.e. finding vision algorithms that are computationally...