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GIMP Plug-In set for 360° panoramas

This plugin set contain 4 plugins helpful in 360° equirectangular panorama
creation:

• fill_zenith_nadir - fills transparent areas on the top and the bottom of the generated panorama with a gradient that smoothly connects to the neighbour pixels
• panorama_to_zenith_nadir - converts panorama to editable form of zenith and nadir areas. This allows for easy editing, eg. patching, filling, placing a logo
• zenith_nadir_to_panorama - converts back the editable zenith and nadir to panorama projection
• set_google_plus_metadata - attach metadata needed to publish panorama on Google+

The panorama_to_zenith_nadir and zenith_nadir_to_panorama plugins are inspired and based on algorithms published by Seb Przd on http://theseblog.free.fr/2007/08/edit-nadir-and-zenith-of.php. These plugins were developed as native, to speed-up their execution.

The fill_zenith_nadir is my own idea, that appeared after unsuccessful hours of unfair fight with high resolution panoramas with huge empty areas on zenith and nadir.

The last plugin - set_google_plus_metadata was obvious complement that enables easy publication of low-res panoramas.

Example of usage you can fing in the [Tutorial].

Requirements

The plugins were developed and tested on Ubuntu 12.10 and Gimp 2.8. It is possible that Gimp 2.8 is needed for the set_google_plus_metadata. Other plugins should work with older releases.

set_google_plus_metadata plugin requires libexempi library.

Installation

In normal cases, when Gimp and libexempi development files are available, it should be enough to issue following commands:

./configure
make
make install

Acknowledgements

Seb Przd for his post with algorithms.
Michael Natterer, Sven Neumann, Dave Neary and other Gimp developers for plugin template and tutorial.

The wiki uses Markdown syntax.

Project Admins:

• rrrekin