fix grayscale loading

11 years ago · 2f046ae873
parent 63715a899e
commit 2f046ae873
1 changed files with 1 additions and 1 deletions
--- a/modules/photo/test/test_npr.cpp
+++ b/modules/photo/test/test_npr.cpp
@ -113,7 +113,7 @@ TEST(Photo_NPR_PencilSketch, regression)
    Mat pencil_result, color_pencil_result;
    pencilSketch(source,pencil_result, color_pencil_result, 10, 0.1f, 0.03f);
-    Mat pencil_reference = imread(folder + "pencil_sketch_reference.png");
+    Mat pencil_reference = imread(folder + "pencil_sketch_reference.png", 0 /* == grayscale*/);
    double pencil_error = norm(pencil_reference, pencil_result, NORM_L1);
    EXPECT_LE(pencil_error, numerical_precision);