added gpu RGB<->Lab and BGR<->Luv conversions

modules/gpu/src/color.cpp

@@ -1170,6 +1170,12 @@ namespace
         #endif
     }
 
+    void rgb_to_lab(const GpuMat& src, GpuMat& dst, int, Stream& stream)
+    {
+        bgr_to_rgb(src, dst, -1, stream);
+        bgr_to_lab(dst, dst, -1, stream);
+    }
+
     void lab_to_bgr(const GpuMat& src, GpuMat& dst, int dcn, Stream& stream)
     {
         #if (CUDA_VERSION < 5000)
@@ -1196,6 +1202,12 @@ namespace
         #endif
     }
 
+    void lab_to_rgb(const GpuMat& src, GpuMat& dst, int, Stream& stream)
+    {
+        lab_to_bgr(src, dst, -1, stream);
+        bgr_to_rgb(dst, dst, -1, stream);
+    }
+
     void rgb_to_luv(const GpuMat& src, GpuMat& dst, int dcn, Stream& stream)
     {
         #if (CUDA_VERSION < 5000)
@@ -1225,6 +1237,12 @@ namespace
         #endif
     }
 
+    void bgr_to_luv(const GpuMat& src, GpuMat& dst, int, Stream& stream)
+    {
+        bgr_to_rgb(src, dst, -1, stream);
+        rgb_to_luv(dst, dst, -1, stream);
+    }
+
     void luv_to_rgb(const GpuMat& src, GpuMat& dst, int dcn, Stream& stream)
     {
         #if (CUDA_VERSION < 5000)
@@ -1253,6 +1271,12 @@ namespace
                 nppSafeCall( nppiLUVToRGB_8u_AC4R(src.ptr<Npp8u>(), static_cast<int>(src.step), dst.ptr<Npp8u>(), static_cast<int>(dst.step), oSizeROI) );
         #endif
     }
+
+    void luv_to_bgr(const GpuMat& src, GpuMat& dst, int, Stream& stream)
+    {
+        luv_to_rgb(src, dst, -1, stream);
+        bgr_to_rgb(dst, dst, -1, stream);
+    }
 }
 
 void cv::gpu::cvtColor(const GpuMat& src, GpuMat& dst, int code, int dcn, Stream& stream)
@@ -1315,14 +1339,14 @@ void cv::gpu::cvtColor(const GpuMat& src, GpuMat& dst, int code, int dcn, Stream
         0,                      //                =43
 
         bgr_to_lab,             // CV_BGR2Lab     =44
-        0,                      // CV_RGB2Lab     =45
+        rgb_to_lab,             // CV_RGB2Lab     =45
 
         0,                      // CV_BayerBG2BGR =46
         0,                      // CV_BayerGB2BGR =47
         0,                      // CV_BayerRG2BGR =48
         0,                      // CV_BayerGR2BGR =49
 
-        0,                      // CV_BGR2Luv     =50
+        bgr_to_luv,             // CV_BGR2Luv     =50
         rgb_to_luv,             // CV_RGB2Luv     =51
 
         bgr_to_hls,             // CV_BGR2HLS     =52
@@ -1332,8 +1356,8 @@ void cv::gpu::cvtColor(const GpuMat& src, GpuMat& dst, int code, int dcn, Stream
         hsv_to_rgb,             // CV_HSV2RGB     =55
 
         lab_to_bgr,             // CV_Lab2BGR     =56
-        0,                      // CV_Lab2RGB     =57
+        lab_to_rgb,             // CV_Lab2RGB     =57
-        0,                      // CV_Luv2BGR     =58
+        luv_to_bgr,             // CV_Luv2BGR     =58
         luv_to_rgb,             // CV_Luv2RGB     =59
 
         hls_to_bgr,             // CV_HLS2BGR     =60

modules/gpu/test/main.cpp

@@ -43,8 +43,6 @@
 
 #ifdef HAVE_CUDA
 
-#include <cuda_runtime_api.h>
-
 using namespace std;
 using namespace cv;
 using namespace cv::gpu;

modules/gpu/test/precomp.hpp

@@ -72,4 +72,9 @@
 #include "utility.hpp"
 #include "interpolation.hpp"
 
+#ifdef HAVE_CUDA
+    #include <cuda.h>
+    #include <cuda_runtime.h>
+#endif
+
 #endif

modules/gpu/test/test_color.cpp

@@ -1628,7 +1628,38 @@ TEST_P(CvtColor, BGR2Lab)
     }
     catch (const cv::Exception& e)
     {
+#if (CUDA_VERSION < 5000)
         ASSERT_EQ(CV_StsBadFlag, e.code);
+#else
+        FAIL();
+#endif
+    }
+}
+
+TEST_P(CvtColor, RGB2Lab)
+{
+    if (depth != CV_8U)
+        return;
+
+    try
+    {
+        cv::Mat src = readImage("stereobm/aloe-L.png");
+
+        cv::gpu::GpuMat dst_lab = createMat(src.size(), src.type(), useRoi);
+        cv::gpu::cvtColor(loadMat(src, useRoi), dst_lab, cv::COLOR_RGB2Lab);
+
+        cv::gpu::GpuMat dst_bgr = createMat(src.size(), src.type(), useRoi);
+        cv::gpu::cvtColor(dst_lab, dst_bgr, cv::COLOR_Lab2RGB);
+
+        EXPECT_MAT_NEAR(src, dst_bgr, 10);
+    }
+    catch (const cv::Exception& e)
+    {
+#if (CUDA_VERSION < 5000)
+        ASSERT_EQ(CV_StsBadFlag, e.code);
+#else
+        FAIL();
+#endif
     }
 }
 
@@ -1641,6 +1672,33 @@ TEST_P(CvtColor, BGR2Luv)
     {
         cv::Mat src = img;
 
+        cv::gpu::GpuMat dst_luv = createMat(src.size(), src.type(), useRoi);
+        cv::gpu::cvtColor(loadMat(src, useRoi), dst_luv, cv::COLOR_BGR2Luv);
+
+        cv::gpu::GpuMat dst_rgb = createMat(src.size(), src.type(), useRoi);
+        cv::gpu::cvtColor(dst_luv, dst_rgb, cv::COLOR_Luv2BGR);
+
+        EXPECT_MAT_NEAR(src, dst_rgb, 10);
+    }
+    catch (const cv::Exception& e)
+    {
+#if (CUDA_VERSION < 5000)
+        ASSERT_EQ(CV_StsBadFlag, e.code);
+#else
+        FAIL();
+#endif
+    }
+}
+
+TEST_P(CvtColor, RGB2Luv)
+{
+    if (depth != CV_8U)
+        return;
+
+    try
+    {
+        cv::Mat src = img;
+
         cv::gpu::GpuMat dst_luv = createMat(src.size(), src.type(), useRoi);
         cv::gpu::cvtColor(loadMat(src, useRoi), dst_luv, cv::COLOR_RGB2Luv);
 
@@ -1651,7 +1709,11 @@ TEST_P(CvtColor, BGR2Luv)
     }
     catch (const cv::Exception& e)
     {
+#if (CUDA_VERSION < 5000)
         ASSERT_EQ(CV_StsBadFlag, e.code);
+#else
+        FAIL();
+#endif
     }
 }