Update to 2.0.0 tree from current Fremantle build

[opencv] / samples / c / polar_transforms.c

diff --git a/samples/c/polar_transforms.c b/samples/c/polar_transforms.c
new file mode 100644 (file)
index 0000000..510b6f8
--- /dev/null
+++ b/samples/c/polar_transforms.c
@@ -0,0 +1,84 @@
+#ifdef _CH_
+#pragma package <opencv>
+#endif
+
+#define CV_NO_BACKWARD_COMPATIBILITY
+
+#ifndef _EiC
+#include "cv.h"
+#include "highgui.h"
+#include <ctype.h>
+#include <stdio.h>
+#endif
+
+
+int main( int argc, char** argv )
+{
+    CvCapture* capture = 0;
+    IplImage*  log_polar_img = 0;
+    IplImage*  lin_polar_img = 0;
+    IplImage*  recovered_img = 0;
+
+    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]);
+        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