Упражнение 11. Компютърно зрение - Revision history

Anko: /* Инсталация openCV */

2012-04-17T04:48:43Z

Инсталация openCV

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Anko: /* връзки */

2012-04-17T04:46:44Z

връзки

Anko: /* връзки */

2011-05-19T20:07:27Z

връзки

Anko: /* връзки */

2011-05-19T20:06:28Z

връзки

Anko: /* Инсталация openCV */

2011-05-19T20:02:20Z

Инсталация openCV

Anko at 08:58, 19 May 2011

2011-05-19T08:58:58Z

Anko at 08:57, 19 May 2011

2011-05-19T08:57:30Z

Anko: /* Инсталация openCV */

2011-05-19T06:12:30Z

Инсталация openCV

Anko: /* Инсталация openCV */

2011-05-19T06:12:05Z

Инсталация openCV

Anko: /* Инсталация openCV */

2011-05-18T13:58:27Z

Инсталация openCV

← Older revision		Revision as of 04:46, 17 April 2012
Line 117:		Line 117:

	</pre></code>		</pre></code>
		+
		+
		+	#include <stdio.h>
		+	#include <math.h>
		+	#include <opencv/highgui.h> //OpenCV GUI functions ̄include <stdio.h>
		+	#include <opencv/cv.h> //main OpenCV functions
		+
		+
		+	int main(int argc, char* argv[] )
		+	{
		+	char use[]="<image> <red threshold> <blue and green threshold> <blue green max diff>\n\n";
		+	char *image_file;
		+	int threshold;
		+	int BG_threshold;
		+	int BG_diff;
		+	IplImage* img;
		+	IplImage* img_result_threshold, img_morph, img_temp;
		+	int x,y,red,green,blue;
		+
		+	CvMemStorage* storage = cvCreateMemStorage(0);
		+	CvSeq* contour = 0;
		+	CvSeq* contours = 0;
		+
		+	//Get inputs parameters
		+	if( argc !=5 )
		+	{
		+	fprintf(stderr, "\nUse: %s %s", argv[0], use);
		+	exit(-1);
		+	}
		+	//Get parameters
		+	image_file=argv[1];
		+	sscanf(argv[2],"%d",&threshold);
		+	sscanf(argv[3],"%d",&BG_threshold);
		+	sscanf(argv[4],"%d",&BG_diff);
		+	//Load image
		+	CvCapture* c1 = cvCaptureFromCAM(0);
		+	cvGrabFrame( c1 );
		+	img=cvRetrieveFrame(c1,0);
		+	cvWaitKey(200);
		+	cvGrabFrame( c1 );
		+	img=cvRetrieveFrame(c1,0);
		+	IplImage* frame = 0;
		+	IplImage* imgThreshed =cvCreateImage(cvGetSize(img), 8, 1);
		+	IplImage* imgScribble = cvCreateImage(cvGetSize(img), 8, 3);
		+
		+
		+
		+	//img= cvLoadImage(image_file,1);
		+	while(cvWaitKey(50) < 0)
		+	{
		+	cvGrabFrame( c1 );
		+	img=cvRetrieveFrame(c1,0);
		+
		+	//Create image result for threshold
		+	img_result_threshold= cvCreateImage(cvSize(img->width, img->height), IPL_DEPTH_8U, 1);
		+
		+	img_morph= cvCreateImage(cvSize(img->width, img->height), IPL_DEPTH_8U, 1);
		+
		+	img_temp= cvCreateImage(cvSize(img->width, img->height), IPL_DEPTH_8U, 1);
		+
		+
		+	for(x=0; x < img->width; x++)
		+	{
		+	for(y=0;y < img->height; y++)
		+	{
		+	red= ((uchar) (img->imageData + img->widthStepy))[x*3+2];
		+	green= ((uchar) (img->imageData + img->widthStepy))[x*3+1];
		+	blue= ((uchar) (img->imageData + img->widthStepy))[x*3];
		+
		+	uchar* temp_ptr = &((uchar*)(img_result_threshold->imageData +
		+	img_result_threshold->widthStep*y))[x];
		+
		+	temp_ptr[0] = ( (red>threshold)&&
		+	(green < BG_threshold) &&
		+	(blue < BG_threshold) &&
		+	(abs(green-blue)< BG_diff)) ? 255:0; //White to greater of threshold
		+	}
		+	}
		+
		+
		+	cvMorphologyEx(img_result_threshold, img_morph, img_temp, NULL, CV_MOP_CLOSE, 6);
		+
		+	//cvNamedWindow( "Threshold", 1 );
		+	// cvShowImage( "Threshold", img_morph );
		+
		+	cvFindContours( img_morph, storage, &contour, sizeof(CvContour), CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0) );
		+
		+
		+
		+	int area = 0, temp = 0, k=0, s = 0;
		+	contours = contour;
		+	for( ; contour != 0; contour = contour->h_next )
		+	{
		+
		+
		+
		+	area = cvContourArea( contour , CV_WHOLE_SEQ ,0);
		+	if (area > temp)
		+	{
		+	s = k;
		+	temp = area;
		+	// printf("%i \n", s);
		+	}
		+	k++;
		+	}
		+	// printf("%i - %i \n", temp, s);
		+	k = 0;
		+	//cvFindContours( img_morph, storage, &contour, sizeof(CvContour), CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE, cvPoint(0,0) );
		+
		+	imgThreshed =cvCreateImage(cvGetSize(img), 8, 1);
		+
		+	for( ; contours != 0; contours = contours->h_next )
		+	{
		+	if( k == s)
		+	{
		+	CvScalar color = CV_RGB(55, 255, 255 );
		+	cvDrawContours( imgThreshed, contours, color, color, -1, -1, 8, cvPoint(0,0) );
		+	}
		+	k++;
		+	}
		+	cvNamedWindow("thresh");
		+	cvShowImage("thresh", imgThreshed);
		+
		+
		+
		+	CvMoments moments = (CvMoments)malloc(sizeof(CvMoments));
		+	cvMoments(imgThreshed, moments, 1);
		+
		+	// The actual moment values
		+	double moment10 = cvGetSpatialMoment(moments, 1, 0);
		+	double moment01 = cvGetSpatialMoment(moments, 0, 1);
		+	double area1 = cvGetCentralMoment(moments, 0, 0);
		+
		+
		+	// Holding the last and current ball positions
		+	static int posX = 0;
		+	static int posY = 0;
		+
		+	int lastX = posX;
		+	int lastY = posY;
		+
		+	posX = moment10/area1;
		+	posY = moment01/area1;
		+
		+	/*The current position of the ball is stored in posX and posY, and the previous location is stored in lastX and lastY.
		+
		+	We’ll just print out the current position for debugging purposes:*/
		+
		+	// Print it out for debugging purposes
		+	printf("position (%d,%d)\n", posX, posY);
		+
		+	if(lastX>0 && lastY>0 && posX>0 && posY>0)
		+	{
		+	// Draw a yellow line from the previous point to the current point
		+	cvLine(imgScribble, cvPoint(posX, posY), cvPoint(lastX, lastY), cvScalar(0,0,255), 5);
		+	}
		+
		+	cvAdd(img, imgScribble, img);
		+	cvNamedWindow("s");
		+	cvShowImage("s", img);
		+
		+	cvReleaseImage(&imgThreshed);
		+	delete moments;
		+
		+
		+	}
		+	return 0;
		+	}
		+

	== връзки ==		== връзки ==

@@ Line 119: / Line 119: @@
 == връзки ==
-[http://robocraft.ru/blog/computervision/435.html]
+http://robocraft.ru/blog/computervision/435.html
-[http://nashruddin.com/]
+http://nashruddin.com/
 [[Category:Компютърна периферия]]

@@ Line 119: / Line 119: @@
 == връзки ==
-http://robocraft.ru/blog/computervision/435.html
+[http://robocraft.ru/blog/computervision/435.html]
 http://nashruddin.com/
 [[Category:Компютърна периферия]]

@@ Line 19: / Line 19: @@
   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
@@ Line 116: / Line 117: @@
 </pre></code>
 [[Category:Компютърна периферия]]

@@ Line 60: / Line 60: @@
 cvSaveImage("/var/www/test.jpg" ,img, 0);
 int main(int argc, char** argv)
@@ Line 114: / Line 115: @@
+}
+</pre></code>
 [[Category:Компютърна периферия]]

@@ Line 17: / Line 17: @@
   make install
-  export LD_LIBRARY_PATH=/home/lab/Downloads/OpenCV-2.2.0/lib:$LD_LIBRARY_PATH sudo ldconfig
+  export LD_LIBRARY_PATH=/home/lab/Downloads/OpenCV-2.2.0/lib:$LD_LIBRARY_PATH
   -lopencv_core -lopencv_imgproc -lopencv_calib3d -lopencv_video -lopencv_features2d -lopencv_ml -lopencv_highgui -lopencv_objdetect -lopencv_contrib -lopencv_legacy

@@ Line 4: / Line 4: @@
 . Инсталирайте cmake
-sudo apt-get install cmake
+ sudo apt-get install cmake
 . Инсталирайте библиотеката libgtk2.0-dev