The enclosed archives (Calibration.sit/Calibration.zip) contain
programs for monitor calibration. These programs assume that
you have a spectral radiometer interfaced to your Mac and that
this radiometer may be accessed through the toolbox routines
CMCheckInit and MeasSpd (in toolbox folder PsychHardware).
The versions of the routines distributed with the toolbox are
designed to work with the PhotoResearch PR-650.

The program CalibrateMonSpd does a full calibration of your
monitor, assuming the standard monitor model (see the manuscript
by Brainard, Pelli and Robson, available for download at
http://color.psych.ucsb.edu/brainard/characterize.pdf
or http://color.psych.ucsb.edu/brainard/characterize.ps).
The program creates a calibration file for your monitor.
This may then be loaded by your MATLAB programs and
used with the calibration conversion routines contained
in the toolbox (see "help PsychCal" and RenderDemo). Before
running the program, you may want to create a folder under the
MATLAB Toolbox folder called "PsychCalDataLocal". Doing
so will cause your calibration data to be stored outside the
toolbox, so it won't be clobbered when you update the toolbox.
(This is tested only on Macs.)

The program DumpMonCalSpd provides a quick dump of what
is in the calibration file.

The program CheckMonCalSpd does a rudimentary linearity check
of your monitor, using the calibration data to predict settings
for a range of chromaticities and then measuring what you
actually get for those settings.

These programs require version 2.45 or later of the toolbox. Version
2.45 is not yet released. Pre-release archives for both Mac and
Windows are available from our web site if you would like to
proceed right away.
http://color.psych.ucsb.edu/psychtoolbox/download/PsychToolbox_2.45pre.sit
http://color.psych.ucsb.edu/psychtoolbox/download/PsychToolbox_2.45pre.zip

As always, the Windows version is much less well-debugged than the
Mac version.

You are welcome to use these programs under the same terms as
the Psychophysics Toolbox itself (see
http://color.psych.ucsb.edu/psychtoolbox/intro.html#copyright
and http://color.psych.ucsb.edu/psychtoolbox/intro.html#cite)

David Brainard