mirror of
https://github.com/opencv/opencv.git
synced 2024-11-27 04:36:36 +08:00
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
#include "opencv2/imgproc/imgproc.hpp"
|
|
#include "opencv2/highgui/highgui.hpp"
|
|
|
|
#include "opencv2/imgproc/imgproc_c.h"
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
|
|
void help()
|
|
{
|
|
printf("\nThis program illustrates Linear-Polar and Log-Polar image transforms\n"
|
|
"Usage :\n"
|
|
"./polar_transforms [[camera number -- Default 0],[AVI path_filename]]\n\n"
|
|
);
|
|
}
|
|
int main( int argc, char** argv )
|
|
{
|
|
CvCapture* capture = 0;
|
|
IplImage* log_polar_img = 0;
|
|
IplImage* lin_polar_img = 0;
|
|
IplImage* recovered_img = 0;
|
|
|
|
help();
|
|
|
|
if( argc == 1 || (argc == 2 && strlen(argv[1]) == 1 && isdigit(argv[1][0])))
|
|
capture = cvCaptureFromCAM( argc == 2 ? argv[1][0] - '0' : 0 );
|
|
else if( argc == 2 )
|
|
capture = cvCaptureFromAVI( argv[1] );
|
|
if( !capture )
|
|
{
|
|
fprintf(stderr,"Could not initialize capturing...\n");
|
|
fprintf(stderr,"Usage: %s <CAMERA_NUMBER> , or \n %s <VIDEO_FILE>\n",argv[0],argv[0]);
|
|
help();
|
|
return -1;
|
|
}
|
|
|
|
cvNamedWindow( "Linear-Polar", 0 );
|
|
cvNamedWindow( "Log-Polar", 0 );
|
|
cvNamedWindow( "Recovered image", 0 );
|
|
|
|
cvMoveWindow( "Linear-Polar", 20,20 );
|
|
cvMoveWindow( "Log-Polar", 700,20 );
|
|
cvMoveWindow( "Recovered image", 20,700 );
|
|
|
|
for(;;)
|
|
{
|
|
IplImage* frame = 0;
|
|
|
|
frame = cvQueryFrame( capture );
|
|
if( !frame )
|
|
break;
|
|
|
|
if( !log_polar_img )
|
|
{
|
|
log_polar_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
|
|
lin_polar_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
|
|
recovered_img = cvCreateImage( cvSize(frame->width,frame->height), IPL_DEPTH_8U, frame->nChannels );
|
|
}
|
|
|
|
cvLogPolar(frame,log_polar_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
|
|
cvLinearPolar(frame,lin_polar_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
|
|
|
|
#if 0
|
|
cvLogPolar(log_polar_img,recovered_img,cvPoint2D32f(frame->width >> 1,frame->height >> 1),70, CV_WARP_INVERSE_MAP+CV_INTER_LINEAR);
|
|
#else
|
|
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);
|
|
#endif
|
|
|
|
cvShowImage("Log-Polar", log_polar_img );
|
|
cvShowImage("Linear-Polar", lin_polar_img );
|
|
cvShowImage("Recovered image", recovered_img );
|
|
|
|
if( cvWaitKey(10) >= 0 )
|
|
break;
|
|
}
|
|
|
|
cvReleaseCapture( &capture );
|
|
cvDestroyWindow("Linear-Polar");
|
|
cvDestroyWindow("Log-Polar");
|
|
cvDestroyWindow("Recovered image");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef _EiC
|
|
main(1,"laplace.c");
|
|
#endif
|