This software was produced by NIST, an agency of the U.S. government,
and by statute is not subject to copyright in the United States.
Recipients of this software assume all responsibilities associated
with its operation, modification and maintenance.

This is an evaluation script: calculates number of shots submitted as:
TruePositive, TrueNegative, FalsePositive, FalseNegative,
recall and precision of low level features (pan, tilt and zoom)

Usage: evalLLF.pl [-d] file1 ...,  -d to get shot names.

In other words, the script needs to be called:

evalLLF [-d] file1.xml file2.xml ... , where the option -d is optional.

This produces either summary results in table format or detailed
results when option -d has been used.

Definitions used:
 
number of shots submitted as true and true in the truth (TruePositive)
number of shots submitted as false and false in the truth (TrueNegative)
number of shots submitted as true and false in the truth (FalsePositive)
number of shots submitted as false and true in the truth (FalseNegative)
 
precision = TruePositive/(TruePositive+FalsePositive);
recall=TruePositive/(TruePositive+FalseNegative)
 
mean precision = sum(precision(Fi))/3, where i=1:3
mean recall = sum(recall(Fi))/3, where i=1,3

In order to use the evalLLF.pl script you need to change the variable
$truthData to reflect the location of your copy of the truth data
file. This has been commented in the script.