CV_TYPE_NAME_HIST 3791 modules/imgproc/src/histogram.cpp     cvStartWriteStruct( fs, name, CV_NODE_MAP, CV_TYPE_NAME_HIST );
CV_TYPE_NAME_HIST 3825 modules/imgproc/src/histogram.cpp CvType hist_type( CV_TYPE_NAME_HIST, icvIsHist, (CvReleaseFunc)cvReleaseHist,