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Deep Impact camera data, Messing about with images from the PDS
elakdawalla
post Dec 28 2009, 07:06 PM
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I'm wondering if anybody here has spent any time working on the Tempel 1 images from Deep Impact. The data are available at the Small Bodies Node (see e.g. http://pdssbn.astro.umd.edu/holdings/dif-c...0/dataset.html), and Version 2 of the PDS archive (which appears to have been published 3 years ago) includes versions of the data that have been calibrated, cleaned of instrument artifacts, and converted to units of radiance and also I/F. The HRI data have not been deconvolved to remove the blur: a bit of playing shows that without deconvolution, HRI images look pretty similar to MRI images. Attached is a color composite I made of the highest-resolution full-globe shots of Tempel 1 captured by the MRI before the impact. The image isn't big but there's more variety in color than I expected. This is made from the I/F images and is an RGB composite of red, green, and violet continuum filter images, overlaid over a clear image that I sharpened slightly. It's very red, but I think that's real.

Has anybody else worked with these?
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elakdawalla
post Dec 28 2009, 10:10 PM
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OK, here's a pretty fictional image -- it's the OGB color I posted above, over an ITS frame captured shortly before. There is significant rotation between the HRI and ITS images and I don't know how to deal with that. I'm also attaching the ITS image without adjustment. Anybody got any advice on anything I can do within Photoshop or GIMP to match the two points of view a bit better?
Reason for edit: Corrected channel identification

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Posts in this topic
- elakdawalla   Deep Impact camera data   Dec 28 2009, 07:06 PM
- - ugordan   Haven't worked with Tempel 1 data yet because ...   Dec 28 2009, 07:28 PM
|- - ugordan   Right, here's what playing with RED, GREEN_CON...   Dec 28 2009, 07:54 PM
- - elakdawalla   Yeah, with the Tempel 1 data especially I wish the...   Dec 28 2009, 07:57 PM
- - elakdawalla   Cross-posting Thanks for your version. Guess I...   Dec 28 2009, 08:02 PM
- - machi   Just old images, but nothing perfect. First is mos...   Dec 28 2009, 08:10 PM
- - elakdawalla   Hooray -- just discovered that IMG2PNG handles the...   Dec 28 2009, 08:18 PM
|- - tedstryk   I have worked with a few images.   Dec 28 2009, 08:35 PM
- - elakdawalla   Nice, is that one of the lookback frames? Funny s...   Dec 28 2009, 09:19 PM
|- - tedstryk   It is a large stack of deconvolved lookback frames...   Dec 28 2009, 09:31 PM
- - elakdawalla   OK, here's the HRI O-G-B combo. Pretty blurry...   Dec 28 2009, 09:55 PM
|- - ugordan   QUOTE (elakdawalla @ Dec 28 2009, 10:55 P...   Dec 28 2009, 10:33 PM
- - elakdawalla   OK, here's a pretty fictional image -- it...   Dec 28 2009, 10:10 PM
- - machi   Not best, but quickest is probably "per parte...   Dec 28 2009, 10:28 PM
|- - ElkGroveDan   QUOTE (machi @ Dec 28 2009, 02:28 PM) Her...   Dec 29 2009, 05:40 PM
- - elakdawalla   Sorry, Gordan, I meant OGB! I fixed that in m...   Dec 28 2009, 11:09 PM
|- - ugordan   QUOTE (elakdawalla @ Dec 29 2009, 12:09 A...   Dec 28 2009, 11:42 PM
- - machi   "per partes". First rough match of the c...   Dec 29 2009, 12:04 AM
|- - ugordan   QUOTE (machi @ Dec 29 2009, 01:04 AM) Thi...   Dec 29 2009, 04:11 PM
|- - tedstryk   I will often work with images at 5x...that signifi...   Dec 29 2009, 05:19 PM
- - elakdawalla   For context, here's what the raw images from S...   Dec 29 2009, 06:04 PM
|- - tedstryk   Stardust's camera is a spare Cassini WAC, so i...   Dec 29 2009, 06:10 PM
|- - ugordan   QUOTE (tedstryk @ Dec 29 2009, 07:10 PM) ...   Dec 29 2009, 06:29 PM
|- - tedstryk   QUOTE (ugordan @ Dec 29 2009, 06:29 PM) F...   Dec 30 2009, 03:34 PM
|- - ElkGroveDan   QUOTE (tedstryk @ Dec 30 2009, 07:34 AM) ...   Dec 30 2009, 04:32 PM
|- - DFinfrock   QUOTE (ElkGroveDan @ Dec 30 2009, 04:32 P...   Dec 31 2009, 02:03 AM
- - brellis   Color pics are really just a relatively narrow ban...   Dec 31 2009, 03:36 AM
|- - tedstryk   Very true.   Dec 31 2009, 04:49 AM
|- - ugordan   QUOTE (brellis @ Dec 31 2009, 04:36 AM) C...   Dec 31 2009, 11:59 AM
|- - ugordan   Here are a few color pics I've been working on...   Jan 1 2010, 09:19 PM
- - Stu   Some of your most beautiful work yet, without a do...   Jan 1 2010, 09:37 PM
- - nprev   Yes...truly dramatic images with genuine impact (u...   Jan 1 2010, 09:50 PM
|- - ugordan   Departing Tempel 1 - animated GIF (4 MB) of 12 HRI...   Jan 3 2010, 11:00 PM
- - machi   Back to the archives! Tempel 1 from DI Impacto...   Nov 9 2010, 03:07 AM
- - Hungry4info   Wow that is nice!   Nov 9 2010, 04:18 AM
- - Decepticon   OMG!!! Amazing!   Nov 10 2010, 12:06 AM
- - ilbasso   With the blurry view off of the focal center of ea...   Nov 10 2010, 12:57 PM
- - machi   "With the blurry view off of the focal center...   Nov 10 2010, 02:45 PM
- - ElkGroveDan   At first I got the same impression that Ilbasso di...   Nov 10 2010, 03:12 PM
- - nprev   Yeah, I noticed the same thing IB did as well...ve...   Nov 10 2010, 03:50 PM
- - djellison   Reminds me of this image http://cache.boston.com/u...   Nov 10 2010, 04:09 PM


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