- #ifdef _CH_
- #pragma package <opencv>
- #endif
-
- #define CV_NO_BACKWARD_COMPATIBILITY
-
- #ifndef _EiC
- #include “cv.h”
- #include “highgui.h”
- #include <stdlib.h>
- #include <stdio.h>
- #endif
-
- #define NUMBER 100
- #define DELAY 5
- char wndname[] = “Drawing Demo”;
-
- CvScalar random_color(CvRNG* rng)
- {
- int icolor = cvRandInt(rng);
- return CV_RGB(icolor&255, (icolor>>8)&255, (icolor>>16)&255);
- }
-
- int main( int argc, char** argv )
- {
- int line_type = CV_AA;
- int i;
- CvPoint pt1,pt2;
- double angle;
- CvSize sz;
- CvPoint ptt[6];
- CvPoint* pt[2];
- int arr[2];
- CvFont font;
- CvRNG rng;
- int width = 1000, height = 700;
- int width3 = width*3, height3 = height*3;
- CvSize text_size;
- int ymin = 0;
-
- IplImage* image = cvCreateImage( cvSize(width,height), 8, 3 );
- IplImage* image2;
-
-
- cvNamedWindow(wndname, 1 );
- cvZero( image );
- cvShowImage(wndname,image);
- cvWaitKey(DELAY);
-
- rng = cvRNG((unsigned)-1);
- pt[0] = &(ptt[0]);
- pt[1] = &(ptt[3]);
-
- arr[0] = 3;
- arr[1] = 3;
-
- for (i = 0; i< NUMBER; i++)
- {
- pt1.x=cvRandInt(&rng) % width3 – width;
- pt1.y=cvRandInt(&rng) % height3 – height;
- pt2.x=cvRandInt(&rng) % width3 – width;
- pt2.y=cvRandInt(&rng) % height3 – height;
-
- cvLine( image, pt1, pt2, random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 0; i< NUMBER; i++)
- {
- pt1.x=cvRandInt(&rng) % width3 – width;
- pt1.y=cvRandInt(&rng) % height3 – height;
- pt2.x=cvRandInt(&rng) % width3 – width;
- pt2.y=cvRandInt(&rng) % height3 – height;
-
- cvRectangle( image,pt1, pt2, random_color(&rng), cvRandInt(&rng)%10-1, line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 0; i< NUMBER; i++)
- {
- pt1.x=cvRandInt(&rng) % width3 – width;
- pt1.y=cvRandInt(&rng) % height3 – height;
- sz.width =cvRandInt(&rng)%200;
- sz.height=cvRandInt(&rng)%200;
- angle = (cvRandInt(&rng)%1000)*0.180;
-
- cvEllipse( image, pt1, sz, angle, angle – 100, angle + 200,
- random_color(&rng), cvRandInt(&rng)%10-1, line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 0; i< NUMBER; i++)
- {
- pt[0][0].x=cvRandInt(&rng) % width3 – width;
- pt[0][0].y=cvRandInt(&rng) % height3 – height;
- pt[0][1].x=cvRandInt(&rng) % width3 – width;
- pt[0][1].y=cvRandInt(&rng) % height3 – height;
- pt[0][2].x=cvRandInt(&rng) % width3 – width;
- pt[0][2].y=cvRandInt(&rng) % height3 – height;
- pt[1][0].x=cvRandInt(&rng) % width3 – width;
- pt[1][0].y=cvRandInt(&rng) % height3 – height;
- pt[1][1].x=cvRandInt(&rng) % width3 – width;
- pt[1][1].y=cvRandInt(&rng) % height3 – height;
- pt[1][2].x=cvRandInt(&rng) % width3 – width;
- pt[1][2].y=cvRandInt(&rng) % height3 – height;
-
- cvPolyLine( image, pt, arr, 2, 1, random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 0; i< NUMBER; i++)
- {
- pt[0][0].x=cvRandInt(&rng) % width3 – width;
- pt[0][0].y=cvRandInt(&rng) % height3 – height;
- pt[0][1].x=cvRandInt(&rng) % width3 – width;
- pt[0][1].y=cvRandInt(&rng) % height3 – height;
- pt[0][2].x=cvRandInt(&rng) % width3 – width;
- pt[0][2].y=cvRandInt(&rng) % height3 – height;
- pt[1][0].x=cvRandInt(&rng) % width3 – width;
- pt[1][0].y=cvRandInt(&rng) % height3 – height;
- pt[1][1].x=cvRandInt(&rng) % width3 – width;
- pt[1][1].y=cvRandInt(&rng) % height3 – height;
- pt[1][2].x=cvRandInt(&rng) % width3 – width;
- pt[1][2].y=cvRandInt(&rng) % height3 – height;
-
- cvFillPoly( image, pt, arr, 2, random_color(&rng), line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 0; i< NUMBER; i++)
- {
- pt1.x=cvRandInt(&rng) % width3 – width;
- pt1.y=cvRandInt(&rng) % height3 – height;
-
- cvCircle( image, pt1, cvRandInt(&rng)%300, random_color(&rng),
- cvRandInt(&rng)%10-1, line_type, 0 );
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- for (i = 1; i< NUMBER; i++)
- {
- pt1.x=cvRandInt(&rng) % width3 – width;
- pt1.y=cvRandInt(&rng) % height3 – height;
-
- cvInitFont( &font, cvRandInt(&rng) % 8,
- (cvRandInt(&rng)%100)*0.05+0.1, (cvRandInt(&rng)%100)*0.05+0.1,
- (cvRandInt(&rng)%5)*0.1, cvRound(cvRandInt(&rng)%10), line_type );
-
- cvPutText( image, “Testing text rendering!”, pt1, &font, random_color(&rng));
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
- cvInitFont( &font, CV_FONT_HERSHEY_COMPLEX, 3, 3, 0.0, 5, line_type );
-
- cvGetTextSize( “OpenCV forever!”, &font, &text_size, &ymin );
-
- pt1.x = (width – text_size.width)/2;
- pt1.y = (height + text_size.height)/2;
- image2 = cvCloneImage(image);
-
- for( i = 0; i < 255; i++ )
- {
- cvSubS( image2, cvScalarAll(i), image, 0 );
- cvPutText( image, “OpenCV forever!”, pt1, &font, CV_RGB(255,i,i));
- cvShowImage(wndname,image);
- if(cvWaitKey(DELAY) >= 0) return 0;
- }
-
-
- cvWaitKey(0);
- cvReleaseImage(&image);
- cvReleaseImage(&image2);
- cvDestroyWindow(wndname);
-
- return 0;
- }
-
- #ifdef _EiC
- main(1,“drawing.c”);
- #endif
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