http://code.activestate.com/recipes/tags/imaging/popular/2016-07-31T22:50:28-07:00ActiveState Code Recipes2016-07-31T22:50:28-07:00FB36http://code.activestate.com/recipes/users/4172570/http://code.activestate.com/recipes/580695-image-projection-onto-sphere/

<p style="color: grey"> Python recipe 580695 by <a href="/recipes/users/4172570/">FB36</a> (<a href="/recipes/tags/graphics/">graphics</a>, <a href="/recipes/tags/image/">image</a>, <a href="/recipes/tags/images/">images</a>, <a href="/recipes/tags/image_processing/">image_processing</a>, <a href="/recipes/tags/imaging/">imaging</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/mathematics/">mathematics</a>, <a href="/recipes/tags/pil/">pil</a>). </p> <p>Image projection onto sphere using Equirectangular map projection.</p> <p>Download the test image from the Wikipedia page!</p>

2014-01-15T22:45:11-08:00Vasudev Ramhttp://code.activestate.com/recipes/users/4173351/http://code.activestate.com/recipes/578811-using-pngcanvas-a-pure-python-png-library/

<p style="color: grey"> Python recipe 578811 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/image_processing/">image_processing</a>, <a href="/recipes/tags/imaging/">imaging</a>, <a href="/recipes/tags/png/">png</a>, <a href="/recipes/tags/pngcanvas/">pngcanvas</a>, <a href="/recipes/tags/python/">python</a>). </p> <p>This recipe shows a simple example of how to use pngcanvas, a pure Python library for PNG image creation.</p>

2008-09-06T05:24:33-07:00Kaushik Ghosehttp://code.activestate.com/recipes/users/4166965/http://code.activestate.com/recipes/576490-using-the-python-imaging-library-to-generate-degra/

<p style="color: grey"> Python recipe 576490 by <a href="/recipes/users/4166965/">Kaushik Ghose</a> (<a href="/recipes/tags/imaging/">imaging</a>, <a href="/recipes/tags/library/">library</a>, <a href="/recipes/tags/science/">science</a>, <a href="/recipes/tags/stimuli/">stimuli</a>, <a href="/recipes/tags/visual/">visual</a>). </p> <p>Code to generate degraded letter stimuli, as used in the paper "The remarkable inefficiency of word recognition" (Pelli et al. 2003). Utilizes the Python Imaging Library, and is an example of the usage of this library.</p>

2008-08-12T18:46:40-07:00Martin Wilsonhttp://code.activestate.com/recipes/users/4166376/http://code.activestate.com/recipes/576416-pad-images-to-power-of-two-dimensions/

<p style="color: grey"> Python recipe 576416 by <a href="/recipes/users/4166376/">Martin Wilson</a> (<a href="/recipes/tags/graphics/">graphics</a>, <a href="/recipes/tags/imaging/">imaging</a>, <a href="/recipes/tags/library/">library</a>, <a href="/recipes/tags/of/">of</a>, <a href="/recipes/tags/opengl/">opengl</a>, <a href="/recipes/tags/pil/">pil</a>, <a href="/recipes/tags/power/">power</a>, <a href="/recipes/tags/power_of_two/">power_of_two</a>, <a href="/recipes/tags/python_imaging_library/">python_imaging_library</a>, <a href="/recipes/tags/two/">two</a>). Revision 4. </p> <p>Pads any amount of images each to power-of-two dimensions, useful for OpenGL programming.</p>