fix grayscale loading

2f046ae8 · Adrien BAK · Adrien BAK · 63715a89 · 2f046ae8
Commit 2f046ae8 authored Sep 26, 2014 by Adrien BAK Committed by Adrien BAK Oct 14, 2014
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test_npr.cpp modules/photo/test/test_npr.cpp +1 -1

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--- 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);