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Module to create heatmaps

Project Description

heatmap 1.0

Build heatmaps in python. Requires the Python Imaging Library.

Minimal example in examples/ Full readme at


2.2.1 - 11 Jan 12
  • pip install bugfix. sorry pip folks! thanks to Jordi Llonch again for the bugfix
  • bugfix in the area parameter for non-square areas; thanks to
2.2 - 2 Oct 12
  • modifed API to return Image instance; caller must specify filename
  • restructured project layout to be more standardized
  • many thanks to Jordi Llonch (, for the pull request
2.1.1 - 27 Sep 12
  • added install support for cygwin
  • fixed gross omission of KML output
  • fixed bug in min computation with negative values
2.1 - 20 Sep 12
  • fixed bug that flipped x/y coordinates - thanks to Curt Hartung for the find and fix
  • added area parameter to allow caller to specify data bounds - thanks to Alex Little for the design.
  • various small cleanups
2.0 - 17 Sep 12
  • moved heavy lifting into C module. Compiles on POSIX systems, pre-compiled DLLs provided for x86 and x64 Windows systems.
1.1 - 31 Jan 10
  • modified _colorize() to not use putpixel; reduced processing time for 1024x1024 image from 14s to 5s
  • Initial release

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