IMG2PNG, PDS/FITS to PNG conversion |
IMG2PNG, PDS/FITS to PNG conversion |
Feb 16 2008, 02:04 PM
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#1
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
I decided to create a special thread for this topic. Previously information on IMG2PNG was scattered across various threads here.
I new version of IMG2PNG is now available. For those that don't know, this is a command line uitility that can convert various PDS formatted files to PNGs (8 or 16 bits per pixel depending on the input files). This utility should work for lots of different PDS files, e.g. MER, Pathfinder, Voyager, Galileo, Cassini, Stardust, various Mars orbiters, Mariner 9/10 (!), Viking Orbiter, Viking Lander, Magellan, Clementine, Messenger, New Horizons etc. The major new feature in the new version is the ability to convert FITS files. IMG2PNG can be downloaded by visiting http://www.mmedia.is/bjj/utils/img2png Any information on possible bugs welcome. |
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May 2 2010, 05:33 AM
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#2
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Newbie Group: Members Posts: 9 Joined: 30-April 10 Member No.: 5339 |
Hi guys,
I'm working on a real-time renderer for large data-sets, and i stumbled onto this website while trying to figure out how to read Mars data into my program. Fascinating website, and I am amazed to see the zeal/respect/love you guys have for outer-space! Anyway, sticking to the topic of the thread: Does IMG2PNG produce 32-bit floating PNGs or does it scale them to 16-bit unsigned integers? |
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May 3 2010, 01:27 AM
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#3
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Does IMG2PNG produce 32-bit floating PNGs or does it scale them to 16-bit unsigned integers? It scales 32 bit floating point values to 16 bit unsigned integers. As far as I know there's no such thing as a 32 bit floating point PNG (although it would be possible to store the floating point values in the 48 bit RGB values if that was of interest). nasa-view out puts to 8 bit indexed gray isis3 ( at the moment ) outputs to a 8 bit gray png and 8 bit tiff ( the tiff should be fixed soon ) Getting the full 16 bits makes a big difference in some cases though. |
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