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https://github.com/NVIDIA/cuda-samples.git
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90 lines
3.9 KiB
C
90 lines
3.9 KiB
C
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/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef IMAGE_DENOISING_H
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#define IMAGE_DENOISING_H
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typedef unsigned int TColor;
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////////////////////////////////////////////////////////////////////////////////
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// Filter configuration
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////////////////////////////////////////////////////////////////////////////////
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#define KNN_WINDOW_RADIUS 3
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#define NLM_WINDOW_RADIUS 3
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#define NLM_BLOCK_RADIUS 3
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#define KNN_WINDOW_AREA \
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((2 * KNN_WINDOW_RADIUS + 1) * (2 * KNN_WINDOW_RADIUS + 1))
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#define NLM_WINDOW_AREA \
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((2 * NLM_WINDOW_RADIUS + 1) * (2 * NLM_WINDOW_RADIUS + 1))
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#define INV_KNN_WINDOW_AREA (1.0f / (float)KNN_WINDOW_AREA)
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#define INV_NLM_WINDOW_AREA (1.0f / (float)NLM_WINDOW_AREA)
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#define KNN_WEIGHT_THRESHOLD 0.02f
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#define KNN_LERP_THRESHOLD 0.79f
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#define NLM_WEIGHT_THRESHOLD 0.10f
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#define NLM_LERP_THRESHOLD 0.10f
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#define BLOCKDIM_X 8
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#define BLOCKDIM_Y 8
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#ifndef MAX
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#define MAX(a, b) ((a < b) ? b : a)
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#endif
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#ifndef MIN
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#define MIN(a, b) ((a < b) ? a : b)
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#endif
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// functions to load images
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extern "C" void LoadBMPFile(uchar4 **dst, int *width, int *height,
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const char *name);
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// CUDA wrapper functions for allocation/freeing texture arrays
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extern "C" cudaTextureObject_t texImage;
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extern "C" cudaError_t CUDA_MallocArray(uchar4 **h_Src, int imageW, int imageH);
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extern "C" cudaError_t CUDA_FreeArray();
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// CUDA kernel functions
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extern "C" void cuda_Copy(TColor *d_dst, int imageW, int imageH,
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cudaTextureObject_t texImage);
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extern "C" void cuda_KNN(TColor *d_dst, int imageW, int imageH, float Noise,
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float lerpC, cudaTextureObject_t texImage);
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extern "C" void cuda_KNNdiag(TColor *d_dst, int imageW, int imageH, float Noise,
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float lerpC, cudaTextureObject_t texImage);
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extern "C" void cuda_NLM(TColor *d_dst, int imageW, int imageH, float Noise,
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float lerpC, cudaTextureObject_t texImage);
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extern "C" void cuda_NLMdiag(TColor *d_dst, int imageW, int imageH, float Noise,
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float lerpC, cudaTextureObject_t texImage);
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extern "C" void cuda_NLM2(TColor *d_dst, int imageW, int imageH, float Noise,
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float LerpC, cudaTextureObject_t texImage);
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extern "C" void cuda_NLM2diag(TColor *d_dst, int imageW, int imageH,
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float Noise, float LerpC,
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cudaTextureObject_t texImage);
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#endif
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