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CVAM: Add the initial program based on the reference.

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Original program can be found here: http://nashruddin.com/template-matching-in-opencv-with-example.html
This commit is contained in:
Bradlee Speice 2012-06-20 15:55:19 -04:00
parent c5d2c9a3d0
commit a4906c7d9a
2 changed files with 109 additions and 0 deletions
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16
Makefile Normal file
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all: cva-match
debug: cva-match-debug
gcc cva-match.o `pkg-config --libs opencv` -o cva-match
cva-match: cva-match.o
gcc cva-match.o `pkg-config --libs opencv` -o cva-match
cva-match-debug: cva-match-debug.o
gcc cva-match.c -DDEBUG `pkg-config --cflags opencv` -c -o cva-match.o
cva-match.o:
gcc cva-match.c `pkg-config --cflags opencv` -c -o cva-match.o
clean:
rm *.o cva-match

93
cva-match.c Normal file
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/*
* TemplateMatching 1.0
*
* @author Nashruddin Amin <me@nashruddin.com>
* @version 1.0
* @website http://www.nashruddin.com
*/
#include <stdio.h>
#include "cv.h"
#include "highgui.h"
int main( int argc, char** argv )
{
IplImage *img;
IplImage *tpl;
IplImage *res;
CvPoint minloc, maxloc;
double minval, maxval;
int img_width, img_height;
int tpl_width, tpl_height;
int res_width, res_height;
/* check for arguments */
if( argc < 3 ) {
fprintf( stderr, "Usage: template_match <reference> <template>\n" );
return 1;
}
/* load reference image */
img = cvLoadImage( argv[1], CV_LOAD_IMAGE_COLOR );
/* always check */
if( img == 0 ) {
fprintf( stderr, "Cannot load file %s!\n", argv[1] );
return 1;
}
/* load template image */
tpl = cvLoadImage( argv[2], CV_LOAD_IMAGE_COLOR );
/* always check */
if( tpl == 0 ) {
fprintf( stderr, "Cannot load file %s!\n", argv[2] );
return 1;
}
/* get image's properties */
img_width = img->width;
img_height = img->height;
tpl_width = tpl->width;
tpl_height = tpl->height;
res_width = img_width - tpl_width + 1;
res_height = img_height - tpl_height + 1;
/* create new image for template matching computation */
res = cvCreateImage( cvSize( res_width, res_height ), IPL_DEPTH_32F, 1 );
/* choose template matching method to be used */
cvMatchTemplate( img, tpl, res, CV_TM_SQDIFF );
/*cvMatchTemplate( img, tpl, res, CV_TM_SQDIFF_NORMED );
cvMatchTemplate( img, tpl, res, CV_TM_CCORR );
cvMatchTemplate( img, tpl, res, CV_TM_CCORR_NORMED );
cvMatchTemplate( img, tpl, res, CV_TM_CCOEFF );
cvMatchTemplate( img, tpl, res, CV_TM_CCOEFF_NORMED );*/
cvMinMaxLoc( res, &minval, &maxval, &minloc, &maxloc, 0 );
/* draw red rectangle */
cvRectangle( img,
cvPoint( minloc.x, minloc.y ),
cvPoint( minloc.x + tpl_width, minloc.y + tpl_height ),
cvScalar( 0, 0, 255, 0 ), 1, 0, 0 );
/* display images */
cvNamedWindow( "reference", CV_WINDOW_AUTOSIZE );
cvNamedWindow( "template", CV_WINDOW_AUTOSIZE );
cvShowImage( "reference", img );
cvShowImage( "template", tpl );
/* wait until user press a key to exit */
cvWaitKey( 0 );
/* free memory */
cvDestroyWindow( "reference" );
cvDestroyWindow( "template" );
cvReleaseImage( &img );
cvReleaseImage( &tpl );
cvReleaseImage( &res );
return 0;
}