pngmerge - composing APNG by PNGs

This python script is a (stand-alone) tool to compose APNG from PNG images.

APNG is an alternative to animated GIF. See the following links:

APNG Specification
APNG Implementation
Portable Network Graphics (PNG) Specification (Second Edition)

Here's an example (http://www.ualberta.ca/~ichiki/images/stokes-flocs2-6e.png):
dancing particles in shear flow

how to use

to make APNG from PNG files (1.png and 2.png), type as follows:
```
  python pngmerge.py -o anim.png 1.png 2.png
 
```

help:

pngmerge -- composing APNG from PNG images
$Id: pngmerge.py,v 1.1 2009/03/25 05:25:59 kengo Exp $
USAGE: python pngmerge.py [options] file1 file2 ...
OPTIONS:
	-o  : output file name
	-np : number of plays (default: 0 for looping)
	-dn : numerator   for delay time (default: 100)
	-dd : denominator for delay time (default: 1000)

download

version 1.1. (save as "pngmerge.py" and run as "python pngmerge.py".)