NAME
pngcomp - PNG (Portable Network Graphics) comparison tool
SYNOPSIS
pngcomp [-vVh] image1.png image2.png
DESCRIPTION
pngcomp gives some basic statistics about the difference between two
images. It was created as a measure of various color quantization
methods.
OPTIONS
-v Verbose, does nothing as yet.
-V Version, prints version information.
-h Help, prints this message.
NOTES
The stats created by this program are purely based on the Euclidean
distance in RGBA space between the pixels of the images. Later versions
will include different measures such as CIE color space measurements
and filters for perception models.
The error calculation used reflects the perceived quality of images
only roughly.
To determine what image is better nothing can surpass having a look for
yourself!
AUTHOR
pngcomp was written by Stuart Coyle <stuart@cybertherial.com>.
This manual page was written by Nelson A. de Oliveira
<naoliv@gmail.com>, for the Debian project (but may be used by others).
Sat, 08 Jul 2006 00:54:16 -0300