127     GstBuffer * buf, cv::Mat img, GstBuffer * outbuf, cv::Mat outimg);
240   cv::Size size = cv::Size (in_width, in_height);  in gst_skin_detect_set_caps()
300     cv::Mat img, GstBuffer * outbuf, cv::Mat outimg)  in gst_skin_detect_transform()
304   std::vector < cv::Mat > channels (3);  in gst_skin_detect_transform()
305   filter->cvRGB = cv::Mat (img);  in gst_skin_detect_transform()
309     cv::cvtColor (filter->cvRGB, filter->cvHSV, cv::COLOR_RGB2HSV);  in gst_skin_detect_transform()
310     cv::split (filter->cvHSV, channels);  in gst_skin_detect_transform()
317 …cv::threshold (filter->cvH, filter->cvH2, 10, UCHAR_MAX, cv::THRESH_BINARY);        /* (hue > 10) …  in gst_skin_detect_transform()
318 …cv::threshold (filter->cvH, filter->cvH, 20, UCHAR_MAX, cv::THRESH_BINARY_INV);     /* (hue < 20) …  in gst_skin_detect_transform()
319     cv::threshold (filter->cvS, filter->cvS, 48, UCHAR_MAX, cv::THRESH_BINARY); /* (sat > 48) */  in gst_skin_detect_transform()
320     cv::threshold (filter->cvV, filter->cvV, 80, UCHAR_MAX, cv::THRESH_BINARY); /* (val > 80) */  in gst_skin_detect_transform()
323     cv::erode (filter->cvH, filter->cvH, cv::Mat (), cv::Point (-1, -1), 1);  in gst_skin_detect_transform()
328     cv::bitwise_and (filter->cvH, filter->cvS, filter->cvSkinPixels1);  in gst_skin_detect_transform()
329     cv::bitwise_and (filter->cvSkinPixels1, filter->cvH2,  in gst_skin_detect_transform()
331     cv::bitwise_and (filter->cvSkinPixels1, filter->cvV, filter->cvSkinPixels1);  in gst_skin_detect_transform()
333     cv::cvtColor (filter->cvSkinPixels1, filter->cvRGB, cv::COLOR_GRAY2RGB);  in gst_skin_detect_transform()
335     cv::split (filter->cvRGB, channels);  in gst_skin_detect_transform()
339     cv::add (filter->cvR, filter->cvG, filter->cvAll);  in gst_skin_detect_transform()
340     cv::add (filter->cvB, filter->cvAll, filter->cvAll);        /*  All = R + G + B */  in gst_skin_detect_transform()
341 …cv::divide (filter->cvR, filter->cvAll, filter->cvRp, 1.0, filter->cvRp.type ());   /*  R' = R / (…  in gst_skin_detect_transform()
342 …cv::divide (filter->cvG, filter->cvAll, filter->cvGp, 1.0, filter->cvGp.type ());   /*  G' = G / (…  in gst_skin_detect_transform()
348 … cv::threshold (filter->cvR2, filter->cvR2, 60, UCHAR_MAX, cv::THRESH_BINARY);       /* (R > 60) */  in gst_skin_detect_transform()
349 …cv::threshold (filter->cvRp, filter->cvRp, 0.42, UCHAR_MAX, cv::THRESH_BINARY);     /* (R'> 0.4) */  in gst_skin_detect_transform()
350 …cv::threshold (filter->cvRp2, filter->cvRp2, 0.6, UCHAR_MAX, cv::THRESH_BINARY_INV);        /* (R'…  in gst_skin_detect_transform()
351 …cv::threshold (filter->cvGp, filter->cvGp, 0.28, UCHAR_MAX, cv::THRESH_BINARY);     /* (G'> 0.28) …  in gst_skin_detect_transform()
352 …cv::threshold (filter->cvGp2, filter->cvGp2, 0.4, UCHAR_MAX, cv::THRESH_BINARY_INV);        /* (G'…  in gst_skin_detect_transform()
357     cv::bitwise_and (filter->cvR2, filter->cvRp, filter->cvSkinPixels2);  in gst_skin_detect_transform()
358     cv::bitwise_and (filter->cvRp, filter->cvSkinPixels2,  in gst_skin_detect_transform()
360     cv::bitwise_and (filter->cvRp2, filter->cvSkinPixels2,  in gst_skin_detect_transform()
362     cv::bitwise_and (filter->cvGp, filter->cvSkinPixels2,  in gst_skin_detect_transform()
364     cv::bitwise_and (filter->cvGp2, filter->cvSkinPixels2,  in gst_skin_detect_transform()
369     cv::cvtColor (filter->cvdraft, filter->cvRGB, cv::COLOR_GRAY2RGB);  in gst_skin_detect_transform()
378     cv::split (filter->cvRGB, channels);  in gst_skin_detect_transform()
381     cv::Mat element =  in gst_skin_detect_transform()
382         cv::getStructuringElement (cv::MORPH_RECT, cv::Size (3, 3),  in gst_skin_detect_transform()
383         cv::Point (1, 1));  in gst_skin_detect_transform()
384     cv::erode (filter->cvChA, filter->cvChA, element, cv::Point (1, 1), 1);  in gst_skin_detect_transform()
385     cv::dilate (filter->cvChA, filter->cvChA, element, cv::Point (1, 1), 2);  in gst_skin_detect_transform()
386     cv::erode (filter->cvChA, filter->cvChA, element, cv::Point (1, 1), 1);  in gst_skin_detect_transform()
388     cv::cvtColor (filter->cvChA, filter->cvRGB, cv::COLOR_GRAY2RGB);  in gst_skin_detect_transform()