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Provide a bit more sane way to calculate tolerance

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Keep the default tolerance at INT_MAX
This commit is contained in:
Bradlee Speice 2012-06-25 15:17:15 -04:00
parent 413e8a8f46
commit c716505c20
2 changed files with 16 additions and 11 deletions
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2
configure.ac
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@ -47,7 +47,7 @@ AM_CONDITIONAL(BUILD_EXAMPLES, [test "$with_examples" != "no"])
if test "$with_examples" != "no"; then if test "$with_examples" != "no"; then
#Headers needed for cva-match #Headers needed for cva-match
echo building examples echo building examples
AC_CHECK_HEADERS([limits.h stdlib.h unistd.h]) AC_CHECK_HEADERS([limits.h stdlib.h unistd.h math.h])
fi fi
# Checks for typedefs, structures, and compiler characteristics. # Checks for typedefs, structures, and compiler characteristics.

25
examples/cva-match.c
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@ -20,6 +20,7 @@
#include <unistd.h> #include <unistd.h>
#include <getopt.h> #include <getopt.h>
#include <limits.h> #include <limits.h>
#include <math.h>
#include <libcvautomation/libcvautomation.h> #include <libcvautomation/libcvautomation.h>
@ -41,10 +42,13 @@ int main( int argc, char** argv )
char *separator = ","; char *separator = ",";
char *root_location = "root.png"; char *root_location = "root.png";
char *sub_location = "sub.png"; char *sub_location = "sub.png";
/* Note that this is a ridiculous value for the tolerance,
* but ensures that you will *always* get a point back
* for every sub-image supplied. */
int tolerance = INT_MAX; int tolerance = INT_MAX;
int search_method = CV_TM_SQDIFF; int search_method = CV_TM_SQDIFF;
int useX = 0; /* bool useX = false; */ int useX = 0; /* bool useX = false; */
int useCenter = 0; int useCenter = 0; /* bool useCenter = false */
char *xDisplay; char *xDisplay;
/* Set the default display */ /* Set the default display */
@ -118,6 +122,7 @@ int main( int argc, char** argv )
case 't': case 't':
tolerance = atoi(optarg); tolerance = atoi(optarg);
tolerance = pow(1.2397076, tolerance);
break; break;
case 'x': case 'x':
@ -206,9 +211,10 @@ Usage: \n\
\t-r, --root-image:\tLocation of the root image to compare against.\n\ \t-r, --root-image:\tLocation of the root image to compare against.\n\
\t-s, --sub-image:\tLocation of the sub-image to find in root.\n\ \t-s, --sub-image:\tLocation of the sub-image to find in root.\n\
\t-p, --separator:\tSeparator of the X and Y coordinates.\n\ \t-p, --separator:\tSeparator of the X and Y coordinates.\n\
\t-t, --tolerance:\tSet how strict the match is - 100 is recommended lowest value.\n\ \t-t, --tolerance=[1-100]:\tSet how strict the match is\n\
\t\t\t\tNote: When using CCORR or CCOEFF tolerance works in opposite direction,\n\ \t\t\t\tNote: When using CCORR or CCOEFF\n\
\t\t\t\tso -50 is recommended highest value.\n\ \t\t\t\ttolerance works in opposite direction,\n\
\t\t\t\tso you set a low-end tolerance, rather than a high-end.\n\
\t-m, --search-method:\tSet which method is used to search for sub-images.\n\ \t-m, --search-method:\tSet which method is used to search for sub-images.\n\
\t\t\t\tMethods:\n\ \t\t\t\tMethods:\n\
\t\t\t\t\tCV_TM_SQDIFF = 0\n\ \t\t\t\t\tCV_TM_SQDIFF = 0\n\
@ -218,12 +224,11 @@ Usage: \n\
\t\t\t\t\tCV_TM_CCOEFF = 4\n\ \t\t\t\t\tCV_TM_CCOEFF = 4\n\
\t\t\t\t\tCV_TM_COEFF_NORMED = 5\n\ \t\t\t\t\tCV_TM_COEFF_NORMED = 5\n\
\t-x, --x-root[=DISPLAY]:\tSet the root image to come from X11\n\ \t-x, --x-root[=DISPLAY]:\tSet the root image to come from X11\n\
\t\t\t\tThe DISPLAY variable is optional, not specifying it will cause X\n\ \t\t\t\tThe DISPLAY variable is optional,\n\
\t\t\t\tto use the default display (not specifically :0.0)\n\ \t\t\t\tnot specifying it will cause X to use the default display\n\
\t\t\t\tPlease note also that the '-x' must come at the end\n\ \t\t\t\t(not specifically :0.0)\n\
\t\t\t\tsince it is an optional argument.\n\ \t-c, --center:\t\tThe output points should be centered\n\
\t-c, --center:\t\tThe output points should be centered on the sub-image, rather\n\ \t\t\t\ton the sub-image, rather than the top-left corner.\n\
\t\t\t\tthan the top-left corner.\n\
\n\ \n\
If you have any questions, comments, concerns, email bspeice@uncc.edu\n" ); If you have any questions, comments, concerns, email bspeice@uncc.edu\n" );