http://registry.gimp.org/taxonomy/term/305 The taxonomy view with a depth of 0. en http://registry.gimp.org/node/11567 <p>Add simple "Rule of Thirds" guides in GIMP.</p> <p>This plug-in is so simple, it might also be useful as a python-fu template.</p> http://registry.gimp.org/node/11567#comments 2.6 any GPLv3 align guides plugin python thirds Thu, 13 Nov 2008 23:37:14 +0100 cr33dog 11567 at http://registry.gimp.org http://registry.gimp.org/node/2352 <h2>A set of plugins and scripts for astronomical image processing</h2> <p>Not intended for scientific image processing, due to gimp's 8bit depth restriction (for "pretty pictures" only).</p> <h3>News:</h3> <p>31.07.2008: gimp-plugin-astronomy-0.6<br /> 29.06.2008: gimp-plugin-astronomy-0.5<br /> 25.03.2008: gimp-plugin-astronomy-0.4</p> <h3>Plugins:</h3> <ul> <li>Align layers using center of brightness or 2D (fourier) cross correlation or gauss fit, subpixel-resolution, with de-rotation!</li> <li>Merge layers using different mean values, including arithmetic/geometric mean, median, and arithmetic mean of x sigma around median.</li> <li>Create a background gradient (artificial flat field) from a layer by fitting a 2D 4th order polynom through pivotal points. Cut out large bright nebulae to avoid wrong pivotal point values!</li> <li>Star rounding: Round longish stars (due to tracking errors...)</li> <li>Create an artificial galaxy. Only elliptical galaxies yet.</li> <li>Create artificial stars: Using different star distributions, splitted into background, object and foreground stars. Examples:<br /> <a href="http://www.cip.physik.uni-muenchen.de/~georg.hennig/artificial_stars_m35.jpg"><img width="640" src="http://www.cip.physik.uni-muenchen.de/~georg.hennig/artificial_stars_m35.jpg"></a><br /> <a href="http://www.cip.physik.uni-muenchen.de/~georg.hennig/artificial_stars_kugelsternhaufen_mit_galaxien.jpg"><img width="640" src="http://www.cip.physik.uni-muenchen.de/~georg.hennig/artificial_stars_kugelsternhaufen_mit_galaxien.jpg"></a> </li> </ul> <h3>Scripts:</h3> <ul> <li>Set mode for all layers</li> <li>Set brightness / contrast for all layers</li> <li>Normalize all layers</li> <li>Subtract dark frame from each layer</li> <li>Divide all layers by a flat field</li> <li>Draw border with image information</li> </ul> <h2>Download latest sources or windows binaries from<br /> <a href="http://hennigbuam.de/georg/gimp.html" title="http://hennigbuam.de/georg/gimp.html">http://hennigbuam.de/georg/gimp.html</a><br /> </h2> http://registry.gimp.org/node/2352#comments 2.4 GPLv2 2.4 align artificial galaxies artificial stars astronomy background gradient layers merge Tue, 25 Mar 2008 12:14:06 +0100 georg298 2352 at http://registry.gimp.org