CV_HIST_SPARSE    742 modules/core/include/opencv2/core/types_c.h #define CV_HIST_TREE          CV_HIST_SPARSE
CV_HIST_SPARSE   2615 modules/imgproc/src/histogram.cpp     else if( type == CV_HIST_SPARSE )
CV_HIST_SPARSE   3082 modules/imgproc/src/histogram.cpp         dst = cvCreateHist( dims1, size1, !is_sparse ? CV_HIST_ARRAY : CV_HIST_SPARSE, 0, 0 );
CV_HIST_SPARSE    149 modules/imgproc/test/test_histograms.cpp     hist_type = cvtest::randInt(rng) % 2 ? CV_HIST_SPARSE : CV_HIST_ARRAY;
CV_HIST_SPARSE    718 modules/imgproc/test/test_histograms.cpp         if( hist_type == CV_HIST_SPARSE &&
CV_HIST_SPARSE    930 modules/imgproc/test/test_histograms.cpp     if( code > 0 && hist_type == CV_HIST_SPARSE )