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use mutex provided by opencv itself

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add getoclcontext and getoclcommandqueue so that other opencl program can interactive with opencv ocl module
correct haar test cases
add face detection sample
This commit is contained in:
niko 2012-08-31 14:08:52 +08:00
parent 11e16a7204
commit 6f6e990988
8 changed files with 416 additions and 428 deletions
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5
modules/ocl/include/opencv2/ocl/ocl.hpp
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@ -88,7 +88,10 @@ namespace cv
//CV_EXPORTS void getComputeCapability(cl_device_id device, int &major, int &minor);
//optional function, if you want save opencl binary kernel to the file, set its path
CV_EXPORTS void setBinpath(const char *path);
//The two functions below are used to get opencl runtime so that opencv can interactive with
//other opencl program
CV_EXPORTS void* getoclContext();
CV_EXPORTS void* getoclCommandQueue();
//////////////////////////////// Error handling ////////////////////////
CV_EXPORTS void error(const char *error_string, const char *file, const int line, const char *func);

116
modules/ocl/perf/test_haar.cpp
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@ -60,29 +60,23 @@ PARAM_TEST_CASE(HaarTestBase, int, int)
//std::vector<cv::ocl::Info> oclinfo;
cv::ocl::OclCascadeClassifier cascade, nestedCascade;
cv::CascadeClassifier cpucascade, cpunestedCascade;
// Mat img;
// Mat img;
double scale;
int index;
virtual void SetUp()
{
scale = 1.1;
#if WIN32
string cascadeName="E:\\opencvbuffer\\trunk\\data\\haarcascades\\haarcascade_frontalface_alt.xml";
#else
string cascadeName="../data/haarcascades/haarcascade_frontalface_alt.xml";
#endif
scale = 1.0;
index=0;
string cascadeName="../../../data/haarcascades/haarcascade_frontalface_alt.xml";
if( (!cascade.load( cascadeName )) || (!cpucascade.load(cascadeName)))
{
cout << "ERROR: Could not load classifier cascade" << endl;
cout << "Usage: facedetect [--cascade=<cascade_path>]\n"
" [--nested-cascade[=nested_cascade_path]]\n"
" [--scale[=<image scale>\n"
" [filename|camera_index]\n" << endl ;
return;
}
//int devnums = getDevice(oclinfo);
@ -97,29 +91,20 @@ PARAM_TEST_CASE(HaarTestBase, int, int)
struct Haar : HaarTestBase {};
TEST_P(Haar, FaceDetect)
TEST_F(Haar, FaceDetect)
{
for(int index = 1;index < 2; index++)
{
Mat img;
char buff[256];
#if WIN32
sprintf(buff,"E:\\myDataBase\\%d.jpg",index);
img = imread( buff, 1 );
#else
sprintf(buff,"%d.jpg",index);
img = imread( buff, 1 );
std::cout << "Now test " << index << ".jpg" <<std::endl;
#endif
string imgName = "../../../samples/c/lena.jpg";
Mat img = imread( imgName, 1 );
if(img.empty())
{
std::cout << "Couldn't read test" << index <<".jpg" << std::endl;
continue;
return ;
}
int i = 0;
double t = 0;
vector<Rect> faces;
vector<Rect> faces, oclfaces;
const static Scalar colors[] = { CV_RGB(0,0,255),
CV_RGB(0,128,255),
@ -135,64 +120,51 @@ TEST_P(Haar, FaceDetect)
cvtColor( img, gray, CV_BGR2GRAY );
resize( gray, smallImg, smallImg.size(), 0, 0, INTER_LINEAR );
equalizeHist( smallImg, smallImg );
CvMat _image = smallImg;
Mat tempimg(&_image, false);
cv::ocl::oclMat image(tempimg);
CvSeq* _objects;
#if 1
for(int k= 0; k<10; k++)
{
t = (double)cvGetTickCount();
_objects = cascade.oclHaarDetectObjects( image, storage, 1.1,
2, 0
for(int k= 0; k<LOOP_TIMES; k++)
{
cpucascade.detectMultiScale( smallImg, faces, 1.1,
3, 0
|CV_HAAR_SCALE_IMAGE
, Size(30,30), Size(0, 0) );
t = (double)cvGetTickCount() - t ;
printf( "detection time = %g ms\n", t/((double)cvGetTickFrequency()*1000.) );
}
t = (double)cvGetTickCount() - t ;
printf( "cpudetection time = %g ms\n", t/(LOOP_TIMES*(double)cvGetTickFrequency()*1000.) );
#else
cpucascade.detectMultiScale( image, faces, 1.1,
2, 0
cv::ocl::oclMat image;
CvSeq* _objects;
t = (double)cvGetTickCount();
for(int k= 0; k<LOOP_TIMES; k++)
{
image.upload(smallImg);
_objects = cascade.oclHaarDetectObjects( image, storage, 1.1,
3, 0
|CV_HAAR_SCALE_IMAGE
, Size(30,30), Size(0, 0) );
#endif
}
t = (double)cvGetTickCount() - t ;
printf( "ocldetection time = %g ms\n", t/(LOOP_TIMES*(double)cvGetTickFrequency()*1000.) );
vector<CvAvgComp> vecAvgComp;
Seq<CvAvgComp>(_objects).copyTo(vecAvgComp);
faces.resize(vecAvgComp.size());
std::transform(vecAvgComp.begin(), vecAvgComp.end(), faces.begin(), getRect());
oclfaces.resize(vecAvgComp.size());
std::transform(vecAvgComp.begin(), vecAvgComp.end(), oclfaces.begin(), getRect());
for( vector<Rect>::const_iterator r = faces.begin(); r != faces.end(); r++, i++ )
{
Mat smallImgROI;
vector<Rect> nestedObjects;
Point center;
Scalar color = colors[i%8];
int radius;
center.x = cvRound((r->x + r->width*0.5)*scale);
center.y = cvRound((r->y + r->height*0.5)*scale);
radius = cvRound((r->width + r->height)*0.25*scale);
circle( img, center, radius, color, 3, 8, 0 );
}
//for( vector<Rect>::const_iterator r = faces.begin(); r != faces.end(); r++, i++ )
//{
// Mat smallImgROI;
// Point center;
// Scalar color = colors[i%8];
// int radius;
// center.x = cvRound((r->x + r->width*0.5)*scale);
// center.y = cvRound((r->y + r->height*0.5)*scale);
// radius = cvRound((r->width + r->height)*0.25*scale);
// circle( img, center, radius, color, 3, 8, 0 );
//}
//namedWindow("result");
//imshow("result",img);
//waitKey(0);
//destroyAllWindows();
#if WIN32
sprintf(buff,"E:\\result1\\%d.jpg",index);
imwrite(buff,img);
#else
sprintf(buff,"testdet_%d.jpg",index);
imwrite(buff,img);
#endif
}
}
//INSTANTIATE_TEST_CASE_P(HaarTestBase, Haar, Combine(Values(1),
// Values(1)));
#endif // HAVE_OPENCL

6
modules/ocl/perf/utility.hpp
View File

@ -45,10 +45,10 @@
#ifdef PRINT_KERNEL_RUN_TIME
#define LOOP_TIMES 1
#else
#define LOOP_TIMES 1
#define LOOP_TIMES 100
#endif
#define MWIDTH 256
#define MHEIGHT 256
#define MWIDTH 1920
#define MHEIGHT 1080
#define CLBINPATH ".\\"
#define LOOPROISTART 0
#define LOOPROIEND 1

14
modules/ocl/src/initialization.cpp
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@ -44,7 +44,6 @@
//M*/
#include "precomp.hpp"
#include "threadsafe.h"
#include <iomanip>
#include "binarycaching.hpp"
@ -348,7 +347,14 @@ namespace cv
}
Context::setContext(oclinfo);
}
void* getoclContext()
{
return &(Context::getContext()->impl->clContext);
}
void* getoclCommandQueue()
{
return &(Context::getContext()->impl->clCmdQueue);
}
void openCLReadBuffer(Context *clCxt, cl_mem dst_buffer, void *host_buffer, size_t size)
{
cl_int status;
@ -772,12 +778,12 @@ namespace cv
/////////////////////////////OpenCL initialization/////////////////
auto_ptr<Context> Context::clCxt;
int Context::val = 0;
CriticalSection cs;
Mutex cs;
Context *Context::getContext()
{
if(val == 0)
{
myAutoLock al(&cs);
AutoLock al(cs);
if( NULL == clCxt.get())
clCxt.reset(new Context);

83
modules/ocl/src/threadsafe.cpp
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@ -1,83 +0,0 @@
/*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) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
// Niko Li, newlife20080214@gmail.com
//
// 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 oclMaterials 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"
#include "threadsafe.h"
CriticalSection::CriticalSection()
{
#if defined WIN32 || defined _WIN32
InitializeCriticalSection(&m_CritSec);
#else
pthread_mutex_init(&m_CritSec, NULL);
#endif
}
CriticalSection::~CriticalSection()
{
#if defined WIN32 || defined _WIN32
DeleteCriticalSection(&m_CritSec);
#else
pthread_mutex_destroy(&m_CritSec);
#endif
}
void CriticalSection::Lock()
{
#if defined WIN32 || defined _WIN32
EnterCriticalSection(&m_CritSec);
#else
pthread_mutex_lock(&m_CritSec);
#endif
}
void CriticalSection::Unlock()
{
#if defined WIN32 || defined _WIN32
LeaveCriticalSection(&m_CritSec);
#else
pthread_mutex_unlock(&m_CritSec);
#endif
}

92
modules/ocl/src/threadsafe.h
View File

@ -1,92 +0,0 @@
/*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) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, 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 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*/
#if defined WIN32 || defined _WIN32
#include <Windows.h>
#undef min
#undef max
#else
#include <pthread.h>
#endif
class CriticalSection
{
public:
CriticalSection();
~CriticalSection();
// Jia Haipeng, jiahaipeng95@gmail.com
void Lock();
void Unlock();
protected:
#if defined WIN32 || defined _WIN32
CRITICAL_SECTION m_CritSec;
#else
pthread_mutex_t m_CritSec;
#endif
};
class myAutoLock
{
public:
explicit myAutoLock(CriticalSection *lock)
{
m_lock = lock;
m_lock->Lock();
};
~myAutoLock()
{
m_lock->Unlock();
};
protected:
CriticalSection *m_lock;
};

133
modules/ocl/test/test_haar.cpp
View File

@ -53,13 +53,7 @@ using namespace testing;
using namespace std;
using namespace cv;
struct getRect
{
Rect operator ()(const CvAvgComp &e) const
{
return e.rect;
}
};
struct getRect { Rect operator ()(const CvAvgComp& e) const { return e.rect; } };
PARAM_TEST_CASE(HaarTestBase, int, int)
{
@ -73,26 +67,20 @@ PARAM_TEST_CASE(HaarTestBase, int, int)
virtual void SetUp()
{
scale = 1.1;
#if WIN32
string cascadeName = "E:\\opencvbuffer\\trunk\\data\\haarcascades\\haarcascade_frontalface_alt.xml";
#else
string cascadeName = "../data/haarcascades/haarcascade_frontalface_alt.xml";
#endif
scale = 1.0;
index=0;
string cascadeName="../../../data/haarcascades/haarcascade_frontalface_alt.xml";
if( (!cascade.load( cascadeName )) || (!cpucascade.load(cascadeName)))
{
cout << "ERROR: Could not load classifier cascade" << endl;
cout << "Usage: facedetect [--cascade=<cascade_path>]\n"
" [--nested-cascade[=nested_cascade_path]]\n"
" [--scale[=<image scale>\n"
" [filename|camera_index]\n" << endl ;
return;
}
//int devnums = getDevice(oclinfo, OPENCV_DEFAULT_OPENCL_DEVICE);
//CV_Assert(devnums > 0);
//int devnums = getDevice(oclinfo);
//CV_Assert(devnums>0);
////if you want to use undefault device, set it here
////setDevice(oclinfo[0]);
//cv::ocl::setBinpath("E:\\");
@ -103,104 +91,69 @@ PARAM_TEST_CASE(HaarTestBase, int, int)
struct Haar : HaarTestBase {};
TEST_P(Haar, FaceDetect)
TEST_F(Haar, FaceDetect)
{
string imgName = "../../../samples/c/lena.jpg";
Mat img = imread( imgName, 1 );
for(int index = 1; index < 2; index++)
{
Mat img;
char buff[256];
#if WIN32
sprintf(buff, "E:\\myDataBase\\%d.jpg", index);
img = imread( buff, 1 );
#else
sprintf(buff, "%d.jpg", index);
img = imread( buff, 1 );
std::cout << "Now test " << index << ".jpg" << std::endl;
#endif
if(img.empty())
{
std::cout << "Couldn't read test" << index << ".jpg" << std::endl;
continue;
std::cout << "Couldn't read test" << index <<".jpg" << std::endl;
return ;
}
int i = 0;
double t = 0;
vector<Rect> faces;
vector<Rect> faces, oclfaces;
const static Scalar colors[] = { CV_RGB(0, 0, 255),
CV_RGB(0, 128, 255),
CV_RGB(0, 255, 255),
CV_RGB(0, 255, 0),
CV_RGB(255, 128, 0),
CV_RGB(255, 255, 0),
CV_RGB(255, 0, 0),
CV_RGB(255, 0, 255)
} ;
const static Scalar colors[] = { CV_RGB(0,0,255),
CV_RGB(0,128,255),
CV_RGB(0,255,255),
CV_RGB(0,255,0),
CV_RGB(255,128,0),
CV_RGB(255,255,0),
CV_RGB(255,0,0),
CV_RGB(255,0,255)} ;
Mat gray, smallImg(cvRound (img.rows / scale), cvRound(img.cols / scale), CV_8UC1 );
Mat gray, smallImg(cvRound (img.rows/scale), cvRound(img.cols/scale), CV_8UC1 );
MemStorage storage(cvCreateMemStorage(0));
cvtColor( img, gray, CV_BGR2GRAY );
resize( gray, smallImg, smallImg.size(), 0, 0, INTER_LINEAR );
equalizeHist( smallImg, smallImg );
CvMat _image = smallImg;
Mat tempimg(&_image, false);
cv::ocl::oclMat image(tempimg);
CvSeq *_objects;
#if 1
for(int k = 0; k < 10; k++)
{
t = (double)cvGetTickCount();
cv::ocl::oclMat image;
CvSeq* _objects;
image.upload(smallImg);
_objects = cascade.oclHaarDetectObjects( image, storage, 1.1,
2, 0
| CV_HAAR_SCALE_IMAGE
, Size(30, 30), Size(0, 0) );
t = (double)cvGetTickCount() - t ;
printf( "detection time = %g ms\n", t / ((double)cvGetTickFrequency() * 1000.) );
}
#else
cpucascade.detectMultiScale( image, faces, 1.1,
2, 0
| CV_HAAR_SCALE_IMAGE
, Size(30, 30), Size(0, 0) );
#endif
3, 0
|CV_HAAR_SCALE_IMAGE
, Size(30,30), Size(0, 0) );
vector<CvAvgComp> vecAvgComp;
Seq<CvAvgComp>(_objects).copyTo(vecAvgComp);
faces.resize(vecAvgComp.size());
std::transform(vecAvgComp.begin(), vecAvgComp.end(), faces.begin(), getRect());
oclfaces.resize(vecAvgComp.size());
std::transform(vecAvgComp.begin(), vecAvgComp.end(), oclfaces.begin(), getRect());
for( vector<Rect>::const_iterator r = faces.begin(); r != faces.end(); r++, i++ )
cpucascade.detectMultiScale( smallImg, faces, 1.1,
3, 0
|CV_HAAR_SCALE_IMAGE
, Size(30,30), Size(0, 0) );
EXPECT_EQ(faces.size(),oclfaces.size());
/* for( vector<Rect>::const_iterator r = faces.begin(); r != faces.end(); r++, i++ )
{
Mat smallImgROI;
vector<Rect> nestedObjects;
Point center;
Scalar color = colors[i%8];
int radius;
center.x = cvRound((r->x + r->width * 0.5) * scale);
center.y = cvRound((r->y + r->height * 0.5) * scale);
radius = cvRound((r->width + r->height) * 0.25 * scale);
center.x = cvRound((r->x + r->width*0.5)*scale);
center.y = cvRound((r->y + r->height*0.5)*scale);
radius = cvRound((r->width + r->height)*0.25*scale);
circle( img, center, radius, color, 3, 8, 0 );
}
} */
//namedWindow("result");
//imshow("result",img);
//waitKey(0);
//destroyAllWindows();
#if WIN32
sprintf(buff, "E:\\result1\\%d.jpg", index);
imwrite(buff, img);
#else
sprintf(buff, "testdet_%d.jpg", index);
imwrite(buff, img);
#endif
}
}
//INSTANTIATE_TEST_CASE_P(HaarTestBase, Haar, Combine(Values(1),
// Values(1)));
#endif // HAVE_OPENCL

229
samples/ocl/facedetect.cpp Normal file
View File

@ -0,0 +1,229 @@
//This sample is inherited from facedetect.cpp in smaple/c
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/ocl/ocl.hpp"
#include <iostream>
#include <stdio.h>
using namespace std;
using namespace cv;
void help()
{
cout << "\nThis program demonstrates the cascade recognizer.\n"
"This classifier can recognize many ~rigid objects, it's most known use is for faces.\n"
"Usage:\n"
"./facedetect [--cascade=<cascade_path> this is the primary trained classifier such as frontal face]\n"
" [--scale=<image scale greater or equal to 1, try 1.3 for example>\n"
" [filename|camera_index]\n\n"
"see facedetect.cmd for one call:\n"
"./facedetect --cascade=\"../../data/haarcascades/haarcascade_frontalface_alt.xml\" --scale=1.3 \n"
"Hit any key to quit.\n"
"Using OpenCV version " << CV_VERSION << "\n" << endl;
}
struct getRect { Rect operator ()(const CvAvgComp& e) const { return e.rect; } };
void detectAndDraw( Mat& img,
cv::ocl::OclCascadeClassifier& cascade, CascadeClassifier& nestedCascade,
double scale);
String cascadeName = "../../../data/haarcascades/haarcascade_frontalface_alt.xml";
int main( int argc, const char** argv )
{
CvCapture* capture = 0;
Mat frame, frameCopy, image;
const String scaleOpt = "--scale=";
size_t scaleOptLen = scaleOpt.length();
const String cascadeOpt = "--cascade=";
size_t cascadeOptLen = cascadeOpt.length();
String inputName;
help();
cv::ocl::OclCascadeClassifier cascade;
CascadeClassifier nestedCascade;
double scale = 1;
for( int i = 1; i < argc; i++ )
{
cout << "Processing " << i << " " << argv[i] << endl;
if( cascadeOpt.compare( 0, cascadeOptLen, argv[i], cascadeOptLen ) == 0 )
{
cascadeName.assign( argv[i] + cascadeOptLen );
cout << " from which we have cascadeName= " << cascadeName << endl;
}
else if( scaleOpt.compare( 0, scaleOptLen, argv[i], scaleOptLen ) == 0 )
{
if( !sscanf( argv[i] + scaleOpt.length(), "%lf", &scale ) || scale < 1 )
scale = 1;
cout << " from which we read scale = " << scale << endl;
}
else if( argv[i][0] == '-' )
{
cerr << "WARNING: Unknown option %s" << argv[i] << endl;
}
else
inputName.assign( argv[i] );
}
if( !cascade.load( cascadeName ) )
{
cerr << "ERROR: Could not load classifier cascade" << endl;
cerr << "Usage: facedetect [--cascade=<cascade_path>]\n"
" [--scale[=<image scale>\n"
" [filename|camera_index]\n" << endl ;
return -1;
}
if( inputName.empty() || (isdigit(inputName.c_str()[0]) && inputName.c_str()[1] == '\0') )
{
capture = cvCaptureFromCAM( inputName.empty() ? 0 : inputName.c_str()[0] - '0' );
int c = inputName.empty() ? 0 : inputName.c_str()[0] - '0' ;
if(!capture) cout << "Capture from CAM " << c << " didn't work" << endl;
}
else if( inputName.size() )
{
image = imread( inputName, 1 );
if( image.empty() )
{
capture = cvCaptureFromAVI( inputName.c_str() );
if(!capture) cout << "Capture from AVI didn't work" << endl;
}
}
else
{
image = imread( "lena.jpg", 1 );
if(image.empty()) cout << "Couldn't read lena.jpg" << endl;
}
cvNamedWindow( "result", 1 );
std::vector<cv::ocl::Info> oclinfo;
int devnums = cv::ocl::getDevice(oclinfo);
if(devnums<1)
{
std::cout << "no device found\n";
return -1;
}
//if you want to use undefault device, set it here
//setDevice(oclinfo[0]);
//setBinpath(CLBINPATH);
if( capture )
{
cout << "In capture ..." << endl;
for(;;)
{
IplImage* iplImg = cvQueryFrame( capture );
frame = iplImg;
if( frame.empty() )
break;
if( iplImg->origin == IPL_ORIGIN_TL )
frame.copyTo( frameCopy );
else
flip( frame, frameCopy, 0 );
detectAndDraw( frameCopy, cascade, nestedCascade, scale );
if( waitKey( 10 ) >= 0 )
goto _cleanup_;
}
waitKey(0);
_cleanup_:
cvReleaseCapture( &capture );
}
else
{
cout << "In image read" << endl;
if( !image.empty() )
{
detectAndDraw( image, cascade, nestedCascade, scale );
waitKey(0);
}
else if( !inputName.empty() )
{
/* assume it is a text file containing the
list of the image filenames to be processed - one per line */
FILE* f = fopen( inputName.c_str(), "rt" );
if( f )
{
char buf[1000+1];
while( fgets( buf, 1000, f ) )
{
int len = (int)strlen(buf), c;
while( len > 0 && isspace(buf[len-1]) )
len--;
buf[len] = '\0';
cout << "file " << buf << endl;
image = imread( buf, 1 );
if( !image.empty() )
{
detectAndDraw( image, cascade, nestedCascade, scale );
c = waitKey(0);
if( c == 27 || c == 'q' || c == 'Q' )
break;
}
else
{
cerr << "Aw snap, couldn't read image " << buf << endl;
}
}
fclose(f);
}
}
}
cvDestroyWindow("result");
return 0;
}
void detectAndDraw( Mat& img,
cv::ocl::OclCascadeClassifier& cascade, CascadeClassifier& nestedCascade,
double scale)
{
int i = 0;
double t = 0;
vector<Rect> faces;
const static Scalar colors[] = { CV_RGB(0,0,255),
CV_RGB(0,128,255),
CV_RGB(0,255,255),
CV_RGB(0,255,0),
CV_RGB(255,128,0),
CV_RGB(255,255,0),
CV_RGB(255,0,0),
CV_RGB(255,0,255)} ;
cv::ocl::oclMat image(img);
cv::ocl::oclMat gray, smallImg( cvRound (img.rows/scale), cvRound(img.cols/scale), CV_8UC1 );
cv::ocl::cvtColor( image, gray, CV_BGR2GRAY );
cv::ocl::resize( gray, smallImg, smallImg.size(), 0, 0, INTER_LINEAR );
cv::ocl::equalizeHist( smallImg, smallImg );
CvSeq* _objects;
MemStorage storage(cvCreateMemStorage(0));
t = (double)cvGetTickCount();
_objects = cascade.oclHaarDetectObjects( smallImg, storage, 1.1,
3, 0
|CV_HAAR_SCALE_IMAGE
, Size(30,30), Size(0, 0) );
vector<CvAvgComp> vecAvgComp;
Seq<CvAvgComp>(_objects).copyTo(vecAvgComp);
faces.resize(vecAvgComp.size());
std::transform(vecAvgComp.begin(), vecAvgComp.end(), faces.begin(), getRect());
t = (double)cvGetTickCount() - t;
printf( "detection time = %g ms\n", t/((double)cvGetTickFrequency()*1000.) );
for( vector<Rect>::const_iterator r = faces.begin(); r != faces.end(); r++, i++ )
{
Mat smallImgROI;
Point center;
Scalar color = colors[i%8];
int radius;
center.x = cvRound((r->x + r->width*0.5)*scale);
center.y = cvRound((r->y + r->height*0.5)*scale);
radius = cvRound((r->width + r->height)*0.25*scale);
circle( img, center, radius, color, 3, 8, 0 );
}
cv::imshow( "result", img );
}