generic-library/opencv
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Build tutorial codes together with other samples

Browse Source 
These codes should be included into regular builds.
This commit is contained in:
Andrey Kamaev
2012-11-07 18:21:20 +04:00
parent 6484732509
commit b131dfeecd
58 changed files with 420 additions and 354 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
samples/cpp/tutorial_code/HighGUI/AddingImagesTrackbar.cpp
View File

@@ -4,8 +4,8 @@
* @author OpenCV team
*/
#include <cv.h>
#include <highgui.h>
#include "opencv2/highgui/highgui.hpp"
#include <stdio.h>
using namespace cv;
@@ -24,7 +24,7 @@ Mat dst;
* @function on_trackbar
* @brief Callback for trackbar
*/
void on_trackbar( int, void* )
static void on_trackbar( int, void* )
{
alpha = (double) alpha_slider/alpha_slider_max ;
@@ -40,7 +40,7 @@ void on_trackbar( int, void* )
* @function main
* @brief Main function
*/
int main( int argc, char** argv )
int main( void )
{
/// Read image ( same size, same type )
src1 = imread("../images/LinuxLogo.jpg");

8
samples/cpp/tutorial_code/HighGUI/BasicLinearTransformsTrackbar.cpp
View File

@@ -5,8 +5,7 @@
* @author OpenCV team
*/
#include <cv.h>
#include <highgui.h>
#include "opencv2/highgui/highgui.hpp"
using namespace cv;
@@ -18,13 +17,12 @@ int beta; /**< Simple brightness control*/
/** Matrices to store images */
Mat image;
Mat new_image;
/**
* @function on_trackbar
* @brief Called whenever any of alpha or beta changes
*/
void on_trackbar( int, void* )
static void on_trackbar( int, void* )
{
Mat new_image = Mat::zeros( image.size(), image.type() );
@@ -44,7 +42,7 @@ void on_trackbar( int, void* )
* @function main
* @brief Main function
*/
int main( int argc, char** argv )
int main( int, char** argv )
{
/// Read image given by user
image = imread( argv[1] );

96
samples/cpp/tutorial_code/HighGUI/video-input-psnr-ssim/video-input-psnr-ssim.cpp
View File

@@ -1,10 +1,10 @@
#include <iostream> // for standard I/O
#include <iostream> // for standard I/O
#include <string> // for strings
#include <iomanip> // for controlling float print precision
#include <sstream> // string to number conversion
#include <opencv2/imgproc/imgproc.hpp> // Gaussian Blur
#include <opencv2/core/core.hpp> // Basic OpenCV structures (cv::Mat, Scalar)
#include <opencv2/imgproc/imgproc.hpp> // Gaussian Blur
#include <opencv2/highgui/highgui.hpp> // OpenCV window I/O
using namespace std;
@@ -13,55 +13,57 @@ using namespace cv;
double getPSNR ( const Mat& I1, const Mat& I2);
Scalar getMSSIM( const Mat& I1, const Mat& I2);
void help()
static void help()
{
cout
<< "\n--------------------------------------------------------------------------" << endl
<< "This program shows how to read a video file with OpenCV. In addition, it tests the"
<< " similarity of two input videos first with PSNR, and for the frames below a PSNR " << endl
<< "trigger value, also with MSSIM."<< endl
<< "Usage:" << endl
<< "------------------------------------------------------------------------------" << endl
<< "This program shows how to read a video file with OpenCV. In addition, it "
<< "tests the similarity of two input videos first with PSNR, and for the frames "
<< "below a PSNR trigger value, also with MSSIM." << endl
<< "Usage:" << endl
<< "./video-source referenceVideo useCaseTestVideo PSNR_Trigger_Value Wait_Between_Frames " << endl
<< "--------------------------------------------------------------------------" << endl
<< "--------------------------------------------------------------------------" << endl
<< endl;
}
int main(int argc, char *argv[], char *window_name)
int main(int argc, char *argv[])
{
help();
if (argc != 5)
{
cout << "Not enough parameters" << endl;
return -1;
}
stringstream conv;
const string sourceReference = argv[1],sourceCompareWith = argv[2];
const string sourceReference = argv[1], sourceCompareWith = argv[2];
int psnrTriggerValue, delay;
conv << argv[3] << endl << argv[4]; // put in the strings
conv >> psnrTriggerValue >> delay;// take out the numbers
conv << argv[3] << endl << argv[4]; // put in the strings
conv >> psnrTriggerValue >> delay; // take out the numbers
char c;
int frameNum = -1; // Frame counter
int frameNum = -1; // Frame counter
VideoCapture captRefrnc(sourceReference),
captUndTst(sourceCompareWith);
VideoCapture captRefrnc(sourceReference), captUndTst(sourceCompareWith);
if ( !captRefrnc.isOpened())
if (!captRefrnc.isOpened())
{
cout << "Could not open reference " << sourceReference << endl;
return -1;
}
if( !captUndTst.isOpened())
if (!captUndTst.isOpened())
{
cout << "Could not open case test " << sourceCompareWith << endl;
return -1;
}
Size refS = Size((int) captRefrnc.get(CV_CAP_PROP_FRAME_WIDTH),
(int) captRefrnc.get(CV_CAP_PROP_FRAME_HEIGHT)),
uTSi = Size((int) captUndTst.get(CV_CAP_PROP_FRAME_WIDTH),
(int) captUndTst.get(CV_CAP_PROP_FRAME_HEIGHT));
(int) captRefrnc.get(CV_CAP_PROP_FRAME_HEIGHT)),
uTSi = Size((int) captUndTst.get(CV_CAP_PROP_FRAME_WIDTH),
(int) captUndTst.get(CV_CAP_PROP_FRAME_HEIGHT));
if (refS != uTSi)
{
@@ -73,43 +75,43 @@ int main(int argc, char *argv[], char *window_name)
const char* WIN_RF = "Reference";
// Windows
namedWindow(WIN_RF, CV_WINDOW_AUTOSIZE );
namedWindow(WIN_UT, CV_WINDOW_AUTOSIZE );
cvMoveWindow(WIN_RF, 400 , 0); //750, 2 (bernat =0)
cvMoveWindow(WIN_UT, refS.width, 0); //1500, 2
namedWindow(WIN_RF, CV_WINDOW_AUTOSIZE);
namedWindow(WIN_UT, CV_WINDOW_AUTOSIZE);
cvMoveWindow(WIN_RF, 400 , 0); //750, 2 (bernat =0)
cvMoveWindow(WIN_UT, refS.width, 0); //1500, 2
cout << "Reference frame resolution: Width=" << refS.width << " Height=" << refS.height
<< " of nr#: " << captRefrnc.get(CV_CAP_PROP_FRAME_COUNT) << endl;
<< " of nr#: " << captRefrnc.get(CV_CAP_PROP_FRAME_COUNT) << endl;
cout << "PSNR trigger value " <<
setiosflags(ios::fixed) << setprecision(3) << psnrTriggerValue << endl;
cout << "PSNR trigger value " << setiosflags(ios::fixed) << setprecision(3)
<< psnrTriggerValue << endl;
Mat frameReference, frameUnderTest;
double psnrV;
Scalar mssimV;
while( true) //Show the image captured in the window and repeat
for(;;) //Show the image captured in the window and repeat
{
captRefrnc >> frameReference;
captUndTst >> frameUnderTest;
if( frameReference.empty() || frameUnderTest.empty())
if (frameReference.empty() || frameUnderTest.empty())
{
cout << " < < < Game over! > > > ";
break;
}
++frameNum;
cout <<"Frame:" << frameNum <<"# ";
cout << "Frame: " << frameNum << "# ";
///////////////////////////////// PSNR ////////////////////////////////////////////////////
psnrV = getPSNR(frameReference,frameUnderTest); //get PSNR
psnrV = getPSNR(frameReference,frameUnderTest);
cout << setiosflags(ios::fixed) << setprecision(3) << psnrV << "dB";
//////////////////////////////////// MSSIM /////////////////////////////////////////////////
if (psnrV < psnrTriggerValue && psnrV)
{
mssimV = getMSSIM(frameReference,frameUnderTest);
mssimV = getMSSIM(frameReference, frameUnderTest);
cout << " MSSIM: "
<< " R " << setiosflags(ios::fixed) << setprecision(2) << mssimV.val[2] * 100 << "%"
@@ -120,10 +122,10 @@ int main(int argc, char *argv[], char *window_name)
cout << endl;
////////////////////////////////// Show Image /////////////////////////////////////////////
imshow( WIN_RF, frameReference);
imshow( WIN_UT, frameUnderTest);
imshow(WIN_RF, frameReference);
imshow(WIN_UT, frameUnderTest);
c = cvWaitKey(delay);
c = (char)cvWaitKey(delay);
if (c == 27) break;
}
@@ -137,7 +139,7 @@ double getPSNR(const Mat& I1, const Mat& I2)
s1.convertTo(s1, CV_32F); // cannot make a square on 8 bits
s1 = s1.mul(s1); // |I1 - I2|^2
Scalar s = sum(s1); // sum elements per channel
Scalar s = sum(s1); // sum elements per channel
double sse = s.val[0] + s.val[1] + s.val[2]; // sum channels
@@ -145,8 +147,8 @@ double getPSNR(const Mat& I1, const Mat& I2)
return 0;
else
{
double mse =sse /(double)(I1.channels() * I1.total());
double psnr = 10.0*log10((255*255)/mse);
double mse = sse / (double)(I1.channels() * I1.total());
double psnr = 10.0 * log10((255 * 255) / mse);
return psnr;
}
}
@@ -155,10 +157,10 @@ Scalar getMSSIM( const Mat& i1, const Mat& i2)
{
const double C1 = 6.5025, C2 = 58.5225;
/***************************** INITS **********************************/
int d = CV_32F;
int d = CV_32F;
Mat I1, I2;
i1.convertTo(I1, d); // cannot calculate on one byte large values
i1.convertTo(I1, d); // cannot calculate on one byte large values
i2.convertTo(I2, d);
Mat I2_2 = I2.mul(I2); // I2^2
@@ -167,7 +169,7 @@ Scalar getMSSIM( const Mat& i1, const Mat& i2)
/*************************** END INITS **********************************/
Mat mu1, mu2; // PRELIMINARY COMPUTING
Mat mu1, mu2; // PRELIMINARY COMPUTING
GaussianBlur(I1, mu1, Size(11, 11), 1.5);
GaussianBlur(I2, mu2, Size(11, 11), 1.5);
@@ -191,15 +193,15 @@ Scalar getMSSIM( const Mat& i1, const Mat& i2)
t1 = 2 * mu1_mu2 + C1;
t2 = 2 * sigma12 + C2;
t3 = t1.mul(t2); // t3 = ((2*mu1_mu2 + C1).*(2*sigma12 + C2))
t3 = t1.mul(t2); // t3 = ((2*mu1_mu2 + C1).*(2*sigma12 + C2))
t1 = mu1_2 + mu2_2 + C1;
t2 = sigma1_2 + sigma2_2 + C2;
t1 = t1.mul(t2); // t1 =((mu1_2 + mu2_2 + C1).*(sigma1_2 + sigma2_2 + C2))
t1 = t1.mul(t2); // t1 =((mu1_2 + mu2_2 + C1).*(sigma1_2 + sigma2_2 + C2))
Mat ssim_map;
divide(t3, t1, ssim_map); // ssim_map = t3./t1;
divide(t3, t1, ssim_map); // ssim_map = t3./t1;
Scalar mssim = mean( ssim_map ); // mssim = average of ssim map
Scalar mssim = mean(ssim_map); // mssim = average of ssim map
return mssim;
}
}

66
samples/cpp/tutorial_code/HighGUI/video-write/video-write.cpp
View File

@@ -7,51 +7,53 @@
using namespace std;
using namespace cv;
void help()
static void help()
{
cout
<< "\n--------------------------------------------------------------------------" << endl
<< "This program shows how to write video files. You can extract the R or G or B color channel "
<< " of the input video.write " << endl
<< "Usage:" << endl
<< "./video-write inputvideoName [ R | G | B] [Y | N]" << endl
<< "--------------------------------------------------------------------------" << endl
<< "------------------------------------------------------------------------------" << endl
<< "This program shows how to write video files." << endl
<< "You can extract the R or G or B color channel of the input video." << endl
<< "Usage:" << endl
<< "./video-write inputvideoName [ R | G | B] [Y | N]" << endl
<< "------------------------------------------------------------------------------" << endl
<< endl;
}
int main(int argc, char *argv[], char *window_name)
int main(int argc, char *argv[])
{
help();
if (argc != 4)
{
cout << "Not enough parameters" << endl;
return -1;
}
const string source = argv[1]; // the source file name
const string source = argv[1]; // the source file name
const bool askOutputType = argv[3][0] =='Y'; // If false it will use the inputs codec type
VideoCapture inputVideo(source); // Open input
if ( !inputVideo.isOpened())
VideoCapture inputVideo(source); // Open input
if (!inputVideo.isOpened())
{
cout << "Could not open the input video." << source << endl;
cout << "Could not open the input video: " << source << endl;
return -1;
}
string::size_type pAt = source.find_last_of('.'); // Find extension point
string::size_type pAt = source.find_last_of('.'); // Find extension point
const string NAME = source.substr(0, pAt) + argv[2][0] + ".avi"; // Form the new name with container
int ex = static_cast<int>(inputVideo.get(CV_CAP_PROP_FOURCC)); // Get Codec Type- Int form
// Transform from int to char via Bitwise operators
char EXT[] = {ex & 0XFF , (ex & 0XFF00) >> 8,(ex & 0XFF0000) >> 16,(ex & 0XFF000000) >> 24, 0};
char EXT[] = {(char)(ex & 0XFF) , (char)((ex & 0XFF00) >> 8),(char)((ex & 0XFF0000) >> 16),(char)((ex & 0XFF000000) >> 24), 0};
Size S = Size((int) inputVideo.get(CV_CAP_PROP_FRAME_WIDTH), //Acquire input size
Size S = Size((int) inputVideo.get(CV_CAP_PROP_FRAME_WIDTH), // Acquire input size
(int) inputVideo.get(CV_CAP_PROP_FRAME_HEIGHT));
VideoWriter outputVideo; // Open the output
if (askOutputType)
outputVideo.open(NAME , ex=-1, inputVideo.get(CV_CAP_PROP_FPS),S, true);
outputVideo.open(NAME, ex=-1, inputVideo.get(CV_CAP_PROP_FPS), S, true);
else
outputVideo.open(NAME , ex, inputVideo.get(CV_CAP_PROP_FPS),S, true);
outputVideo.open(NAME, ex, inputVideo.get(CV_CAP_PROP_FPS), S, true);
if (!outputVideo.isOpened())
{
@@ -59,33 +61,29 @@ int main(int argc, char *argv[], char *window_name)
return -1;
}
union { int v; char c[5];} uEx ;
uEx.v = ex; // From Int to char via union
uEx.c[4]='\0';
cout << "Input frame resolution: Width=" << S.width << " Height=" << S.height
<< " of nr#: " << inputVideo.get(CV_CAP_PROP_FRAME_COUNT) << endl;
<< " of nr#: " << inputVideo.get(CV_CAP_PROP_FRAME_COUNT) << endl;
cout << "Input codec type: " << EXT << endl;
int channel = 2; // Select the channel to save
int channel = 2; // Select the channel to save
switch(argv[2][0])
{
case 'R' : {channel = 2; break;}
case 'G' : {channel = 1; break;}
case 'B' : {channel = 0; break;}
case 'R' : channel = 2; break;
case 'G' : channel = 1; break;
case 'B' : channel = 0; break;
}
Mat src,res;
Mat src, res;
vector<Mat> spl;
while( true) //Show the image captured in the window and repeat
for(;;) //Show the image captured in the window and repeat
{
inputVideo >> src; // read
if( src.empty()) break; // check if at end
if (src.empty()) break; // check if at end
split(src, spl); // process - extract only the correct channel
for( int i =0; i < 3; ++i)
if (i != channel)
spl[i] = Mat::zeros(S, spl[0].type());
split(src, spl); // process - extract only the correct channel
for (int i =0; i < 3; ++i)
if (i != channel)
spl[i] = Mat::zeros(S, spl[0].type());
merge(spl, res);
//outputVideo.write(res); //save or
@@ -94,4 +92,4 @@ int main(int argc, char *argv[], char *window_name)
cout << "Finished writing" << endl;
return 0;
}
}