mirror of
				https://github.com/NVIDIA/cuda-samples.git
				synced 2025-10-31 19:47:48 +08:00 
			
		
		
		
	
		
			
				
	
	
		
			90 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			90 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
 | |
|  *
 | |
|  * Redistribution and use in source and binary forms, with or without
 | |
|  * modification, are permitted provided that the following conditions
 | |
|  * are met:
 | |
|  *  * Redistributions of source code must retain the above copyright
 | |
|  *    notice, this list of conditions and the following disclaimer.
 | |
|  *  * Redistributions in binary form must reproduce the above copyright
 | |
|  *    notice, this list of conditions and the following disclaimer in the
 | |
|  *    documentation and/or other materials provided with the distribution.
 | |
|  *  * Neither the name of NVIDIA CORPORATION nor the names of its
 | |
|  *    contributors may be used to endorse or promote products derived
 | |
|  *    from this software without specific prior written permission.
 | |
|  *
 | |
|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
 | |
|  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 | |
|  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 | |
|  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 | |
|  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 | |
|  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 | |
|  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 | |
|  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 | |
|  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 | |
|  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | |
|  */
 | |
| 
 | |
| #ifndef IMAGE_DENOISING_H
 | |
| #define IMAGE_DENOISING_H
 | |
| 
 | |
| typedef unsigned int TColor;
 | |
| 
 | |
| ////////////////////////////////////////////////////////////////////////////////
 | |
| // Filter configuration
 | |
| ////////////////////////////////////////////////////////////////////////////////
 | |
| #define KNN_WINDOW_RADIUS 3
 | |
| #define NLM_WINDOW_RADIUS 3
 | |
| #define NLM_BLOCK_RADIUS 3
 | |
| #define KNN_WINDOW_AREA \
 | |
|   ((2 * KNN_WINDOW_RADIUS + 1) * (2 * KNN_WINDOW_RADIUS + 1))
 | |
| #define NLM_WINDOW_AREA \
 | |
|   ((2 * NLM_WINDOW_RADIUS + 1) * (2 * NLM_WINDOW_RADIUS + 1))
 | |
| #define INV_KNN_WINDOW_AREA (1.0f / (float)KNN_WINDOW_AREA)
 | |
| #define INV_NLM_WINDOW_AREA (1.0f / (float)NLM_WINDOW_AREA)
 | |
| 
 | |
| #define KNN_WEIGHT_THRESHOLD 0.02f
 | |
| #define KNN_LERP_THRESHOLD 0.79f
 | |
| #define NLM_WEIGHT_THRESHOLD 0.10f
 | |
| #define NLM_LERP_THRESHOLD 0.10f
 | |
| 
 | |
| #define BLOCKDIM_X 8
 | |
| #define BLOCKDIM_Y 8
 | |
| 
 | |
| #ifndef MAX
 | |
| #define MAX(a, b) ((a < b) ? b : a)
 | |
| #endif
 | |
| #ifndef MIN
 | |
| #define MIN(a, b) ((a < b) ? a : b)
 | |
| #endif
 | |
| 
 | |
| // functions to load images
 | |
| extern "C" void LoadBMPFile(uchar4 **dst, int *width, int *height,
 | |
|                             const char *name);
 | |
| 
 | |
| // CUDA wrapper functions for allocation/freeing texture arrays
 | |
| extern "C" cudaTextureObject_t texImage;
 | |
| 
 | |
| extern "C" cudaError_t CUDA_MallocArray(uchar4 **h_Src, int imageW, int imageH);
 | |
| extern "C" cudaError_t CUDA_FreeArray();
 | |
| 
 | |
| // CUDA kernel functions
 | |
| extern "C" void cuda_Copy(TColor *d_dst, int imageW, int imageH,
 | |
|                           cudaTextureObject_t texImage);
 | |
| extern "C" void cuda_KNN(TColor *d_dst, int imageW, int imageH, float Noise,
 | |
|                          float lerpC, cudaTextureObject_t texImage);
 | |
| extern "C" void cuda_KNNdiag(TColor *d_dst, int imageW, int imageH, float Noise,
 | |
|                              float lerpC, cudaTextureObject_t texImage);
 | |
| extern "C" void cuda_NLM(TColor *d_dst, int imageW, int imageH, float Noise,
 | |
|                          float lerpC, cudaTextureObject_t texImage);
 | |
| extern "C" void cuda_NLMdiag(TColor *d_dst, int imageW, int imageH, float Noise,
 | |
|                              float lerpC, cudaTextureObject_t texImage);
 | |
| 
 | |
| extern "C" void cuda_NLM2(TColor *d_dst, int imageW, int imageH, float Noise,
 | |
|                           float LerpC, cudaTextureObject_t texImage);
 | |
| extern "C" void cuda_NLM2diag(TColor *d_dst, int imageW, int imageH,
 | |
|                               float Noise, float LerpC,
 | |
|                               cudaTextureObject_t texImage);
 | |
| 
 | |
| #endif
 |