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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
#Headers needed for cva-match
echo building examples
AC_CHECK_HEADERS([limits.h stdlib.h unistd.h])
AC_CHECK_HEADERS([limits.h stdlib.h unistd.h math.h])
fi
# Checks for typedefs, structures, and compiler characteristics.

25
examples/cva-match.c
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@ -20,6 +20,7 @@
#include <unistd.h>
#include <getopt.h>
#include <limits.h>
#include <math.h>
#include <libcvautomation/libcvautomation.h>
@ -41,10 +42,13 @@ int main( int argc, char** argv )
char *separator = ",";
char *root_location = "root.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 search_method = CV_TM_SQDIFF;
int useX = 0; /* bool useX = false; */
int useCenter = 0;
int useCenter = 0; /* bool useCenter = false */
char *xDisplay;
/* Set the default display */
@ -118,6 +122,7 @@ int main( int argc, char** argv )
case 't':
tolerance = atoi(optarg);
tolerance = pow(1.2397076, tolerance);
break;
case 'x':
@ -206,9 +211,10 @@ Usage: \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-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\t\tNote: When using CCORR or CCOEFF tolerance works in opposite direction,\n\
\t\t\t\tso -50 is recommended highest value.\n\
\t-t, --tolerance=[1-100]:\tSet how strict the match is\n\
\t\t\t\tNote: When using CCORR or CCOEFF\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\t\t\tMethods:\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_COEFF_NORMED = 5\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\tto use the default display (not specifically :0.0)\n\
\t\t\t\tPlease note also that the '-x' must come at the end\n\
\t\t\t\tsince it is an optional argument.\n\
\t-c, --center:\t\tThe output points should be centered on the sub-image, rather\n\
\t\t\t\tthan the top-left corner.\n\
\t\t\t\tThe DISPLAY variable is optional,\n\
\t\t\t\tnot specifying it will cause X to use the default display\n\
\t\t\t\t(not specifically :0.0)\n\
\t-c, --center:\t\tThe output points should be centered\n\
\t\t\t\ton the sub-image, rather than the top-left corner.\n\
\n\
If you have any questions, comments, concerns, email bspeice@uncc.edu\n" );