Упражнение 11. Компютърно зрение

Инсталация openCV

1. Инсталирайте cmake

sudo apt-get install cmake

2. Инсталирайте библиотеката libgtk2.0-dev

sudo apt-get install libgtk2.0-dev

3. да се свали openCV 2.2 и разархивирайте в директория Downloads/OpenCV-2.2.0

4. Влезте в директорията

cd Downloads/OpenCV-2.2.0
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ./
make
make install

export LD_LIBRARY_PATH=/home/lab/Downloads/OpenCV-2.2.0/lib:$LD_LIBRARY_PATH
sudo ldconfig

-lopencv_core -lopencv_imgproc -lopencv_calib3d -lopencv_video -lopencv_features2d -lopencv_ml -lopencv_highgui -lopencv_objdetect -lopencv_contrib -lopencv_legacy

#include <opencv/highgui.h> //OpenCV GUI functions ̄include <stdio.h>
#include <opencv/cv.h>     //main OpenCV functions


int main(int argc, char** argv)
{
  CvCapture* c1 = cvCaptureFromCAM(0);
  IplImage* img = 0;
  
  
	   
  while(cvWaitKey(2) < 0)
  {
    cvGrabFrame( c1 );	
    img=cvRetrieveFrame(c1,0);
    cvShowImage( "c1", img);
  }
 
  //destroy the window
  cvReleaseCapture(&c1);
  return 0;
}

sinaptic manager apache2 http://localhost/

sudo chmod 777 /var/www/index.html sudo chmod 777 /var/www/

<img src="test.jpg" /> cvSaveImage("/var/www/test.jpg" ,img, 0);

int main(int argc, char** argv) {

 CvCapture* c1 = cvCaptureFromCAM(0);
 IplImage* img;
 IplImage* img1;
 IplImage* img2;
 IplImage* img3;
 
 cvGrabFrame( c1 );	
 img=cvRetrieveFrame(c1,0);
 img1=cvRetrieveFrame(c1,0);
 img2=cvRetrieveFrame(c1,0);
 img3=cvRetrieveFrame(c1,0);

/* get image properties */ int width = img->width; int height = img->height;

 cvAdd(img, img ,img , NULL); 

/* create new image for the grayscale version */ IplImage* bw = cvCreateImage( cvSize( width, height ), IPL_DEPTH_8U, 1 );

 while(cvWaitKey(5) < 0)
 {
   
   
   img2 = img1;
   img1 = img;
    
   cvGrabFrame( c1 );	
   img=cvRetrieveFrame(c1,0);
   
  
  cvAddWeighted( img1, 0.33, img2, 0.33, 0, img3);
  cvAddWeighted( img, 1, img, 0.33, 0, img3); 

  cvCvtColor( img3, bw, CV_RGB2GRAY );
   cvCanny( bw, bw, 50, 100, 3 );

   cvShowImage( "c1", bw);
 }

 //destroy the window
 cvReleaseCapture(&c1);
 return 0;

}