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A pixel-based, potentially pseudo-random image generator

Project description

yelljfish is a pixel-based, potentially pseudo-random image generator. It is very simple.


yelljfish is free software under the terms of the GNU Affero General Public License version 3 (or any later version). This is version 0.1.0 of the program.


The author of yelljfish is Niels Serup. Bug reports and suggestions should be sent to for the time being.



yelljfish requires libpng. On Debian-based systems, you can install it with something like this command: apt-get install libpng12 libpng12-dev

Way #1

Get the newest version of yelljfish at or at

Extract yelljfish from the downloaded file, cd into it and run this in a terminal:

# python3 install

Examples are available in the examples directory.

Way #2

Just run this:

# pip-3.1 install yelljfish

Note that this will not make any examples available.


As a command-line tool

Run yelljfish to use it. Run yelljfish --help to see how to use it.

As a module

To find out how to use it, run:

$ pydoc3 yelljfish


There are a few examples in the examples directory.


yelljfish uses Git for code management. The newest (and perhaps unstable) code is available at:

$ git clone git://

This document

Copyright (C) 2011 Niels Serup

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.

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