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spatialGradient: Make kern args const&

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This commit is contained in:
Seon-Wook Park
2015-07-01 09:34:27 +09:00
parent 90c398ea67
commit 20bf88bad1
1 changed files with 3 additions and 3 deletions
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6
modules/imgproc/src/spatialgradient.cpp
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@@ -59,9 +59,9 @@ namespace cv
*/
template <typename T>
static inline void spatialGradientKernel( T& vx, T& vy,
T v00, T v01, T v02,
T v10, T v12,
T v20, T v21, T v22 )
const T& v00, const T& v01, const T& v02,
const T& v10, const T& v12,
const T& v20, const T& v21, const T& v22 )
{
// vx = (v22 - v00) + (v02 - v20) + 2 * (v12 - v10)
// vy = (v22 - v00) + (v20 - v02) + 2 * (v21 - v01)