mirror of
https://github.com/opencv/opencv.git
synced 2024-11-26 12:10:49 +08:00
188 lines
5.7 KiB
C
188 lines
5.7 KiB
C
#ifdef _CH_
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#pragma package <opencv>
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#endif
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#define CV_NO_BACKWARD_COMPATIBILITY
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#ifndef _EiC
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#include "cv.h"
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#include "highgui.h"
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#include <stdlib.h>
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#include <stdio.h>
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#endif
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#define NUMBER 100
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#define DELAY 5
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char wndname[] = "Drawing Demo";
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CvScalar random_color(CvRNG* rng)
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{
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int icolor = cvRandInt(rng);
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return CV_RGB(icolor&255, (icolor>>8)&255, (icolor>>16)&255);
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}
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int main( int argc, char** argv )
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{
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int line_type = CV_AA; // change it to 8 to see non-antialiased graphics
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int i;
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CvPoint pt1,pt2;
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double angle;
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CvSize sz;
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CvPoint ptt[6];
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CvPoint* pt[2];
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int arr[2];
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CvFont font;
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CvRNG rng;
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int width = 1000, height = 700;
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int width3 = width*3, height3 = height*3;
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CvSize text_size;
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int ymin = 0;
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// Load the source image
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IplImage* image = cvCreateImage( cvSize(width,height), 8, 3 );
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IplImage* image2;
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// Create a window
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cvNamedWindow(wndname, 1 );
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cvZero( image );
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cvShowImage(wndname,image);
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cvWaitKey(DELAY);
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rng = cvRNG((unsigned)-1);
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pt[0] = &(ptt[0]);
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pt[1] = &(ptt[3]);
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arr[0] = 3;
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arr[1] = 3;
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for (i = 0; i< NUMBER; i++)
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{
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pt1.x=cvRandInt(&rng) % width3 - width;
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pt1.y=cvRandInt(&rng) % height3 - height;
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pt2.x=cvRandInt(&rng) % width3 - width;
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pt2.y=cvRandInt(&rng) % height3 - height;
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cvLine( image, pt1, pt2, random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 0; i< NUMBER; i++)
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{
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pt1.x=cvRandInt(&rng) % width3 - width;
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pt1.y=cvRandInt(&rng) % height3 - height;
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pt2.x=cvRandInt(&rng) % width3 - width;
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pt2.y=cvRandInt(&rng) % height3 - height;
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cvRectangle( image,pt1, pt2, random_color(&rng), cvRandInt(&rng)%10-1, line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 0; i< NUMBER; i++)
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{
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pt1.x=cvRandInt(&rng) % width3 - width;
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pt1.y=cvRandInt(&rng) % height3 - height;
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sz.width =cvRandInt(&rng)%200;
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sz.height=cvRandInt(&rng)%200;
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angle = (cvRandInt(&rng)%1000)*0.180;
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cvEllipse( image, pt1, sz, angle, angle - 100, angle + 200,
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random_color(&rng), cvRandInt(&rng)%10-1, line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 0; i< NUMBER; i++)
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{
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pt[0][0].x=cvRandInt(&rng) % width3 - width;
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pt[0][0].y=cvRandInt(&rng) % height3 - height;
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pt[0][1].x=cvRandInt(&rng) % width3 - width;
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pt[0][1].y=cvRandInt(&rng) % height3 - height;
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pt[0][2].x=cvRandInt(&rng) % width3 - width;
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pt[0][2].y=cvRandInt(&rng) % height3 - height;
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pt[1][0].x=cvRandInt(&rng) % width3 - width;
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pt[1][0].y=cvRandInt(&rng) % height3 - height;
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pt[1][1].x=cvRandInt(&rng) % width3 - width;
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pt[1][1].y=cvRandInt(&rng) % height3 - height;
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pt[1][2].x=cvRandInt(&rng) % width3 - width;
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pt[1][2].y=cvRandInt(&rng) % height3 - height;
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cvPolyLine( image, pt, arr, 2, 1, random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 0; i< NUMBER; i++)
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{
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pt[0][0].x=cvRandInt(&rng) % width3 - width;
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pt[0][0].y=cvRandInt(&rng) % height3 - height;
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pt[0][1].x=cvRandInt(&rng) % width3 - width;
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pt[0][1].y=cvRandInt(&rng) % height3 - height;
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pt[0][2].x=cvRandInt(&rng) % width3 - width;
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pt[0][2].y=cvRandInt(&rng) % height3 - height;
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pt[1][0].x=cvRandInt(&rng) % width3 - width;
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pt[1][0].y=cvRandInt(&rng) % height3 - height;
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pt[1][1].x=cvRandInt(&rng) % width3 - width;
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pt[1][1].y=cvRandInt(&rng) % height3 - height;
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pt[1][2].x=cvRandInt(&rng) % width3 - width;
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pt[1][2].y=cvRandInt(&rng) % height3 - height;
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cvFillPoly( image, pt, arr, 2, random_color(&rng), line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 0; i< NUMBER; i++)
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{
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pt1.x=cvRandInt(&rng) % width3 - width;
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pt1.y=cvRandInt(&rng) % height3 - height;
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cvCircle( image, pt1, cvRandInt(&rng)%300, random_color(&rng),
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cvRandInt(&rng)%10-1, line_type, 0 );
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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for (i = 1; i< NUMBER; i++)
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{
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pt1.x=cvRandInt(&rng) % width3 - width;
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pt1.y=cvRandInt(&rng) % height3 - height;
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cvInitFont( &font, cvRandInt(&rng) % 8,
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(cvRandInt(&rng)%100)*0.05+0.1, (cvRandInt(&rng)%100)*0.05+0.1,
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(cvRandInt(&rng)%5)*0.1, cvRound(cvRandInt(&rng)%10), line_type );
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cvPutText( image, "Testing text rendering!", pt1, &font, random_color(&rng));
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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cvInitFont( &font, CV_FONT_HERSHEY_COMPLEX, 3, 3, 0.0, 5, line_type );
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cvGetTextSize( "OpenCV forever!", &font, &text_size, &ymin );
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pt1.x = (width - text_size.width)/2;
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pt1.y = (height + text_size.height)/2;
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image2 = cvCloneImage(image);
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for( i = 0; i < 255; i++ )
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{
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cvSubS( image2, cvScalarAll(i), image, 0 );
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cvPutText( image, "OpenCV forever!", pt1, &font, CV_RGB(255,i,i));
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cvShowImage(wndname,image);
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if(cvWaitKey(DELAY) >= 0) return 0;
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}
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// Wait for a key stroke; the same function arranges events processing
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cvWaitKey(0);
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cvReleaseImage(&image);
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cvReleaseImage(&image2);
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cvDestroyWindow(wndname);
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return 0;
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}
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#ifdef _EiC
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main(1,"drawing.c");
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#endif
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