Pyctools - a picture processing algorithm development kit.
http://github.com/jim-easterbrook/pyctools
Copyright (C) 2012-19  Jim Easterbrook  jim@jim-easterbrook.me.uk

This program is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see
<http://www.gnu.org/licenses/>.

Changes in v0.5.0:
  1/ Rethought use of range, black level, and white level. Now almost every
  component will assume 0..255 and if conversion to/from 16..235 is needed it
  should be done as soon after input or before output as possible.

Changes in v0.4.0:
  1/ Reworked component configuration system.

Changes in v0.1.1:
  1/ Added a lot of documentation
  2/ Added components to read/write still images
  3/ Bug fixes and speed improvements

Changes in v0.1.0:
  1/ First release

