mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.8 KiB
86 lines
2.8 KiB
#include "opencv2/imgproc/imgproc_c.h" |
|
#include "opencv2/videoio/videoio_c.h" |
|
#include "opencv2/highgui/highgui_c.h" |
|
|
|
#include <ctype.h> |
|
#include <stdio.h> |
|
|
|
static void help( void ) |
|
{ |
|
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
|
|
|