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added first version of gpu::matchTemplate, currently it works only with 8UC1 images and SQDIFF method

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This commit is contained in:
Alexey Spizhevoy
2010-12-06 14:19:41 +00:00
parent 8891acb67a
commit 50167f6c26
8 changed files with 323 additions and 5 deletions
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2
modules/gpu/src/border_interpolate.cpp
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@@ -40,7 +40,7 @@
//
//M*/
#include "internal_common.hpp"
#include "internal_shared.hpp"
#include "border_interpolate.hpp"
#include "opencv2/gpu/gpu.hpp"

2
modules/gpu/src/cuda/border_interpolate.hpp
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@@ -43,7 +43,7 @@
#ifndef __OPENCV_GPU_BORDER_INTERPOLATE_HPP__
#define __OPENCV_GPU_BORDER_INTERPOLATE_HPP__
#include "../internal_common.hpp"
#include "../internal_shared.hpp"
namespace cv { namespace gpu {

97
modules/gpu/src/cuda/match_template.cu Normal file
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@@ -0,0 +1,97 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's 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.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "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 Intel Corporation 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.
//
//M*/
#include "cuda_shared.hpp"
using namespace cv::gpu;
namespace cv { namespace gpu { namespace imgproc {
texture<unsigned char, 2> imageTex_8U;
texture<unsigned char, 2> templTex_8U;
__global__ void matchTemplateKernel_8U_SqDiff(int w, int h, DevMem2Df result)
{
int x = blockDim.x * blockIdx.x + threadIdx.x;
int y = blockDim.y * blockIdx.y + threadIdx.y;
if (x < result.cols && y < result.rows)
{
float sum = 0.f;
float delta;
for (int i = 0; i < h; ++i)
{
for (int j = 0; j < w; ++j)
{
delta = (float)tex2D(imageTex_8U, x + j, y + i) -
(float)tex2D(templTex_8U, j, i);
sum += delta * delta;
}
}
result.ptr(y)[x] = sum;
}
}
void matchTemplateCaller_8U_SqDiff(const DevMem2D image, const DevMem2D templ, DevMem2Df result)
{
dim3 threads(32, 8);
dim3 grid(divUp(image.cols - templ.cols + 1, threads.x),
divUp(image.rows - templ.rows + 1, threads.y));
cudaChannelFormatDesc desc = cudaCreateChannelDesc<unsigned char>();
cudaBindTexture2D(0, imageTex_8U, image.data, desc, image.cols, image.rows, image.step);
cudaBindTexture2D(0, templTex_8U, templ.data, desc, templ.cols, templ.rows, templ.step);
imageTex_8U.filterMode = cudaFilterModePoint;
templTex_8U.filterMode = cudaFilterModePoint;
matchTemplateKernel_8U_SqDiff<<<grid, threads>>>(templ.cols, templ.rows, result);
cudaSafeCall(cudaThreadSynchronize());
cudaSafeCall(cudaUnbindTexture(imageTex_8U));
cudaSafeCall(cudaUnbindTexture(templTex_8U));
}
}}}

4
modules/gpu/src/internal_common.hpp → modules/gpu/src/internal_shared.hpp
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@@ -40,8 +40,8 @@
//
//M*/
#ifndef __OPENCV_GPU_INTERNAL_COMMON_HPP__
#define __OPENCV_GPU_INTERNAL_COMMON_HPP__
#ifndef __OPENCV_GPU_INTERNAL_SHARED_HPP__
#define __OPENCV_GPU_INTERNAL_SHARED_HPP__
namespace cv { namespace gpu {

69
modules/gpu/src/match_template.cpp Normal file
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@@ -0,0 +1,69 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's 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.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "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 Intel Corporation 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.
//
//M*/
#include "precomp.hpp"
#if !defined (HAVE_CUDA)
void cv::gpu::matchTemplate(const GpuMat&, const GpuMat&, GpuMat&, int) { throw_nogpu(); }
#else
namespace cv { namespace gpu { namespace imgproc {
void matchTemplateCaller_8U_SqDiff(const DevMem2D, const DevMem2D, DevMem2Df);
}}}
void cv::gpu::matchTemplate(const GpuMat& image, const GpuMat& templ, GpuMat& result, int method)
{
CV_Assert(image.type() == CV_8U);
CV_Assert(method == CV_TM_SQDIFF);
CV_Assert(image.type() == templ.type());
CV_Assert(image.cols >= templ.cols && image.rows >= templ.rows);
result.create(image.rows - templ.rows + 1, image.cols - templ.cols + 1, CV_32F);
imgproc::matchTemplateCaller_8U_SqDiff(image, templ, result);
}
#endif