vcs.maemo.org Git - opencv/blob - samples/c/polar_transforms.c

   1 #ifdef _CH_
   2 #pragma package <opencv>
   3 #endif
   4
   5 #define CV_NO_BACKWARD_COMPATIBILITY
   6
   7 #ifndef _EiC
   8 #include "cv.h"
   9 #include "highgui.h"
  10 #include <ctype.h>
  11 #include <stdio.h>
  12 #endif
  13
  14
  15 int main( int argc, char** argv )
  16 {
  17     CvCapture* capture = 0;
  18     IplImage*  log_polar_img = 0;
  19     IplImage*  lin_polar_img = 0;
  20     IplImage*  recovered_img = 0;
  21
  22     if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0])))
  23         capture = cvCaptureFromCAM( argc == 2 ? argv[1][0] - '0' : 0 );
  24     else if( argc == 2 )
  25         capture = cvCaptureFromAVI( argv[1] );
  26
  27     if( !capture )
  28     {
  29         fprintf(stderr,"Could not initialize capturing...\n");
  30         fprintf(stderr,"Usage: %s <CAMERA_NUMBER>    , or \n       %s <VIDEO_FILE>\n",argv[0],argv[0]);
  31         return -1;
  32     }
  33
  34     cvNamedWindow( "Linear-Polar", 0 );
  35     cvNamedWindow( "Log-Polar", 0 );
  36     cvNamedWindow( "Recovered image", 0 );
  37
  38     cvMoveWindow( "Linear-Polar", 20,20 );
  39     cvMoveWindow( "Log-Polar", 700,20 );
  40     cvMoveWindow( "Recovered image", 20,700 );
  41
  42     for(;;)
  43     {
  44         IplImage* frame = 0;
  45
  46         frame = cvQueryFrame( capture );
  47         if( !frame )
  48             break;
  49
  50         if( !log_polar_img )
  51         {
  52             log_polar_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
  53             lin_polar_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
  54             recovered_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
  55         }
  56
  57         cvLogPolar(frame,log_polar_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
  58         cvLinearPolar(frame,lin_polar_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
  59
  60 #if 0
  61                 cvLogPolar(log_polar_img,recovered_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_WARP_INVERSE_MAP+CV_INTER_LINEAR);
  62 #else
  63         cvLinearPolar(lin_polar_img,recovered_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_WARP_INVERSE_MAP+CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
  64 #endif
  65
  66         cvShowImage("Log-Polar", log_polar_img );
  67         cvShowImage("Linear-Polar", lin_polar_img );
  68         cvShowImage("Recovered image", recovered_img );
  69
  70         if( cvWaitKey(10) >= 0 )
  71             break;
  72     }
  73
  74     cvReleaseCapture( &capture );
  75     cvDestroyWindow("Linear-Polar");
  76     cvDestroyWindow("Log-Polar");
  77     cvDestroyWindow("Recovered image");
  78
  79     return 0;
  80 }
  81
  82 #ifdef _EiC
  83 main(1,"laplace.c");
  84 #endif