Added parallel version for DCT_ROWS

2014-04-21 12:43:26 +04:00
parent 6880dbfd95
commit 16629bff4c
2 changed files with 130 additions and 100 deletions
--- a/modules/imgproc/src/distransform.cpp
+++ b/modules/imgproc/src/distransform.cpp
@@ -577,7 +577,7 @@ trueDistTrans( const Mat& src, Mat& dst )
    for( ; i <= m*3; i++ )
        sat_tab[i] = i - shift;

-    cv::parallel_for_(cv::Range(0, n), cv::DTColumnInvoker(&src, &dst, sat_tab, sqr_tab));
+    cv::parallel_for_(cv::Range(0, n), cv::DTColumnInvoker(&src, &dst, sat_tab, sqr_tab), src.total()/(double)(1<<16));

    // stage 2: compute modified distance transform for each row
    float* inv_tab = sqr_tab + n;