COS - Image Processing Applications and Resources
App Site Link
|Runs on OS X 10.10.2 Yosemite||
|Gimp||Gimp-2.8.14p2-Mavericks-Yosemite.dmg - Y||v2.8.14||N|
|G'Mic plugin for Gimp||http://sourceforge.net/projects/gmic/files/macosx/||v220.127.116.11|
|DS9||http://ds9.si.edu/site/Home.html||Y with XQuartz 2.7.6 after download and copying in v7.2 again to Applications. Does not add to Launchpad!||v7.2|
Summary on Graphics for web The key to optimizing web graphics is to minimize their size, number, and quality, and maximize cropping. Combine adjacent images and use client-side imagemaps instead. Substitute CSS-based rollovers for bandwidth-hungry image-based rollovers. Replace graphic text with styled text. Finally, to minimize HTTP requests, reuse images with the same URL. With all graphics, you can't go wrong if you do the following: Eliminate and combine your images to minimize HTTP requests. Convert graphic text into styled text. Maximize cropping and minimize dimensions. Use the right image format (JPEGs for photographs). Use interlacing with care (avoid interlacing on smaller images and most PNGs). When capturing photographs, use a stable platform, (tripod, image stabilization) Minimize noise, smear, and complexity. Use weighted optimization to reduce less important areas and blur backgrounds (for JPEGs). Minimize colors (bit-depth) for palette-based formats. Use a high-quality quantizer on true-color originals and limit dithering. Set your image resolution to 72dpi. Specify the actual height and width of all images. Use grayscale where possible. Use thumbnails linked to larger images. Experiment with different settings and programs.
|Resources for images and image processing.|
Image resources for both complete images and raw data which can be processed in applications like GIMP to produce final 'colour' (or false colour images). Most NASA images are in the public domain unless otherwise stated, however if used credit should be given.
ESO images and videos, along with the texts of press releases, announcements, pictures of the week and captions, are released under the Creative Commons Attribution 3.0 Unported license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. See ESO site for more details http://www.eso.org/public/outreach/copyright.html
|Resource or App to be researched||Site Link|
|Space Telescope image examples||http://www.spacetelescope.org/projects/fits_liberator/eagledata/|
|Space Telescope image examples||http://www.spacetelescope.org/projects/fits_liberator/datasets/|
|Space Telescope heritage image examples||http://archive.stsci.edu/prepds/heritage/|
|Space Telescope image examples M51||http://archive.stsci.edu/prepds/m51/datalist.html|