xbob.measure.idmeasure 0.0.2

Installation

First, you have to install bob following the instructions there.

There are two options you can follow to get this package installed and operational on your computer: you can use automatic installers like pip (or easy_install) or manually download, unpack and use zc.buildout to create a virtual work environment just for this package. In both cases, the two dependences listed above will be automatically downloaded and installed.

$ pip install xbob.measure.idmeasure

$ easy_install xbob.measure.idmeasure

$ python bootstrap.py
$ ./bin/buildout

User Guide

It is assumed you have followed the installation instructions for the package and got this package installed.

Below, we provide an example of how to appy DIR to plot the DIR curve, from the python universe:

>>> import idmeasure
# predefine a list of false acceptance rates
>>> FAR=[.01, 0.1, 1]
#Read The four column file needs to be in the same format as described in the five_column function,
and the "test label" (column 4) has to contain the test/probe file name.  please refer the functions of bob.measure.load.cmc_four_column, bob.measure.load.cmc_five_column to load or generate the "cmc scores".
>>> idmeasure.DIR_plot(cmc_scores, FAR)
>>>pyplot.xlabel("Rank")
>>>pyplot.ylabel("Identification Rate (%)")
>>>pyplot.title("Detection and Identification Rate Identification Experiment")
>>>pyplot.grid()
>>>pyplot.savefig("eigenfaceDIR.png")
>>>pyplot.close()