Single chip for imaging, colour segmentation, histogramming and template matching

A 128(H)/spl times/64(V)/spl times/RGB CMOS imager is integrated with region-of-interest selection, RGB-to-HSI transformation, HSI-based pixel segmentation, 36 bin/spl times/12 bit HSI histogramming and sum-of-absolute-difference template matching. 32 learned colour templates are stored and compared to each image. Running at 30 fps, it uses 1 mW.