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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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4
modules/gpu/include/opencv2/gpu/gpu.hpp
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@ -656,6 +656,10 @@ namespace cv
CV_EXPORTS void cornerMinEigenVal(const GpuMat& src, GpuMat& dst, int blockSize, int ksize, int borderType=BORDER_REFLECT101);
//! computes the proximity map for the raster template and the image where the template is searched for
CV_EXPORTS void matchTemplate(const GpuMat& image, const GpuMat& templ, GpuMat& result, int method);
//////////////////////////////// Filter Engine ////////////////////////////////
/*!

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
View File

@ -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

5
tests/gpu/src/gputest_main.cpp
View File

@ -56,7 +56,10 @@ const char* blacklist[] =
int main( int argc, char** argv )
{
return test_system.run( argc, argv, blacklist );
argc = 3;
const char* manargs[] = { "gputest", "-tn", "GPU-MatchTemplateTest"};
return test_system.run( argc, (char**)manargs, blacklist );
}
/* End of file. */

145
tests/gpu/src/match_template.cpp Normal file
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@ -0,0 +1,145 @@
/*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 GpuMaterials 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 bpied warranties, including, but not limited to, the bpied
// 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 "gputest.hpp"
using namespace cv;
using namespace std;
struct CV_GpuMatchTemplateTest: CvTest
{
CV_GpuMatchTemplateTest(): CvTest("GPU-MatchTemplateTest", "matchTemplate") {}
void run(int)
{
try
{
Mat image, templ;
Mat dst_gold;
gpu::GpuMat dst;
int n, m, h, w;
for (int i = 0; i < 4; ++i)
{
n = 1 + rand() % 100;
m = 1 + rand() % 100;
do h = 1 + rand() % 20; while (h > n);
do w = 1 + rand() % 20; while (w > m);
gen(image, n, m, CV_8U);
gen(templ, h, w, CV_8U);
match_template_naive(image, templ, dst_gold);
gpu::matchTemplate(gpu::GpuMat(image), gpu::GpuMat(templ), dst, CV_TM_SQDIFF);
if (!check8U(dst_gold, Mat(dst))) return;
}
}
catch (const Exception& e)
{
if (!check_and_treat_gpu_exception(e, ts)) throw;
return;
}
}
void gen(Mat& a, int rows, int cols, int type)
{
RNG rng;
a.create(rows, cols, type);
if (type == CV_8U)
rng.fill(a, RNG::UNIFORM, Scalar(0), Scalar(10));
}
// Naive version for unsigned char
// Time complexity is O(a.size().area() * b.size().area()).
void match_template_naive(const Mat& a, const Mat& b, Mat& c)
{
c.create(a.rows - b.rows + 1, a.cols - b.cols + 1, CV_32F);
for (int i = 0; i < c.rows; ++i)
{
for (int j = 0; j < c.cols; ++j)
{
float delta;
float sum = 0.f;
for (int y = 0; y < b.rows; ++y)
{
const unsigned char* arow = a.ptr(i + y);
const unsigned char* brow = b.ptr(y);
for (int x = 0; x < b.cols; ++x)
{
delta = (float)(arow[j + x] - brow[x]);
sum += delta * delta;
}
}
c.at<float>(i, j) = sum;
}
}
}
bool check8U(const Mat& a, const Mat& b)
{
if (a.size() != b.size())
{
ts->printf(CvTS::CONSOLE, "bad size");
ts->set_failed_test_info(CvTS::FAIL_INVALID_OUTPUT);
return false;
}
for (int i = 0; i < a.rows; ++i)
{
for (int j = 0; j < a.cols; ++j)
{
float v1 = a.at<float>(i, j);
float v2 = b.at<float>(i, j);
if (fabs(v1 - v2) > 1e-3f)
{
ts->printf(CvTS::CONSOLE, "(gold)%f != %f, pos: (%d, %d) size: (%d, %d)\n",
v1, v2, j, i, a.cols, a.rows);
ts->set_failed_test_info(CvTS::FAIL_INVALID_OUTPUT);
return false;
}
}
}
return true;
}
} match_template_test;