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      1 /*M///////////////////////////////////////////////////////////////////////////////////////
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     10 //                           License Agreement
     11 //                For Open Source Computer Vision Library
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     13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
     14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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     41 //M*/
     42 
     43 #include "precomp.hpp"
     44 
     45 using namespace cv;
     46 using namespace cv::cuda;
     47 
     48 #if !defined (HAVE_CUDA) || defined (CUDA_DISABLER)
     49 
     50 void cv::cuda::bilateralFilter(InputArray, OutputArray, int, float, float, int, Stream&) { throw_no_cuda(); }
     51 
     52 #else
     53 
     54 namespace cv { namespace cuda { namespace device
     55 {
     56     namespace imgproc
     57     {
     58         template<typename T>
     59         void bilateral_filter_gpu(const PtrStepSzb& src, PtrStepSzb dst, int kernel_size, float sigma_spatial, float sigma_color, int borderMode, cudaStream_t stream);
     60     }
     61 }}}
     62 
     63 void cv::cuda::bilateralFilter(InputArray _src, OutputArray _dst, int kernel_size, float sigma_color, float sigma_spatial, int borderMode, Stream& stream)
     64 {
     65     using cv::cuda::device::imgproc::bilateral_filter_gpu;
     66 
     67     typedef void (*func_t)(const PtrStepSzb& src, PtrStepSzb dst, int kernel_size, float sigma_spatial, float sigma_color, int borderMode, cudaStream_t s);
     68 
     69     static const func_t funcs[6][4] =
     70     {
     71         {bilateral_filter_gpu<uchar>      , 0 /*bilateral_filter_gpu<uchar2>*/ , bilateral_filter_gpu<uchar3>      , bilateral_filter_gpu<uchar4>      },
     72         {0 /*bilateral_filter_gpu<schar>*/, 0 /*bilateral_filter_gpu<schar2>*/ , 0 /*bilateral_filter_gpu<schar3>*/, 0 /*bilateral_filter_gpu<schar4>*/},
     73         {bilateral_filter_gpu<ushort>     , 0 /*bilateral_filter_gpu<ushort2>*/, bilateral_filter_gpu<ushort3>     , bilateral_filter_gpu<ushort4>     },
     74         {bilateral_filter_gpu<short>      , 0 /*bilateral_filter_gpu<short2>*/ , bilateral_filter_gpu<short3>      , bilateral_filter_gpu<short4>      },
     75         {0 /*bilateral_filter_gpu<int>*/  , 0 /*bilateral_filter_gpu<int2>*/   , 0 /*bilateral_filter_gpu<int3>*/  , 0 /*bilateral_filter_gpu<int4>*/  },
     76         {bilateral_filter_gpu<float>      , 0 /*bilateral_filter_gpu<float2>*/ , bilateral_filter_gpu<float3>      , bilateral_filter_gpu<float4>      }
     77     };
     78 
     79     sigma_color = (sigma_color <= 0 ) ? 1 : sigma_color;
     80     sigma_spatial = (sigma_spatial <= 0 ) ? 1 : sigma_spatial;
     81 
     82     int radius = (kernel_size <= 0) ? cvRound(sigma_spatial*1.5) : kernel_size/2;
     83     kernel_size = std::max(radius, 1)*2 + 1;
     84 
     85     GpuMat src = _src.getGpuMat();
     86 
     87     CV_Assert( src.depth() <= CV_32F && src.channels() <= 4 );
     88     CV_Assert( borderMode == BORDER_REFLECT101 || borderMode == BORDER_REPLICATE || borderMode == BORDER_CONSTANT || borderMode == BORDER_REFLECT || borderMode == BORDER_WRAP );
     89 
     90     const func_t func = funcs[src.depth()][src.channels() - 1];
     91     CV_Assert( func != 0 );
     92 
     93     _dst.create(src.size(), src.type());
     94     GpuMat dst = _dst.getGpuMat();
     95 
     96     func(src, dst, kernel_size, sigma_spatial, sigma_color, borderMode, StreamAccessor::getStream(stream));
     97 }
     98 
     99 #endif
    100