My Assistant
Deep Impact camera data, Messing about with images from the PDS |
Dec 28 2009, 07:06 PM
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![]() Administrator ![]() ![]() ![]() ![]() Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
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? -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Dec 29 2009, 12:04 AM
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![]() Member ![]() ![]() ![]() Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
"per partes". First rough match of the color and BW image is done (color image is resampled and rotated), than misfitting parts are removed and replaced by more suitable resampled version of the color image (mostly same image).
This is simplest and quickest way, when images are similar. More sophisticated is warping, but I don't know, if this feature is in the Photoshop. But It is in ImageJ. -------------------- |
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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
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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