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Processed Cassini Jupiter Images, Fun with the PDS files
Bjorn Jonsson
post Aug 3 2005, 10:26 PM
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Now that I have downloaded all of the PDS formatted Cassini Jupiter images (and actually all of the Saturn images too) I have been experimenting with processing calibrated versions of them:

http://www.mmedia.is/bjj/misc/css_stuff/im...grnbl1_proc.jpg
http://www.mmedia.is/bjj/misc/css_stuff/im...olor_mosaic.jpg

The first one is simply a global view composed from CB1 (red), GRN and BL1 filtered images with the color balance adjusted to make it more realistic and with some sharpening applied to the image. This is a preliminary version, it looks very bluish at the limb due to Jupiter's rotation (I preferred this to color fringing at the center of Jupiter's disk). Later I plan to fix this by rotating the images in 3D space.

The second one is a reprocessed version of the well known Io transit image but with the addition of the north polar region - since this is a preliminary version some seams may be visible. Later this may turn into a global mosaic. The color balance is also improved. The 'official' image seems to have been composed from CB2, (CB2+BL1)/2 and BL1 filtered images (only CB2 and BL1 images are available). Using CB2 as red makes the belts too reddish if you want whitish zones. To fix this I used a synthetic CB1 image created from a linear combination of the CB2 and BL1 images. Needless to say I also used a synthetic green image.

Now the plan is to do a big cylindrical map of Jupiter followed by an even bigger one of Saturn.
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djellison
post Aug 4 2005, 07:24 PM
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ted - what range are the source images in?

Doug
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tedstryk
post Aug 4 2005, 10:03 PM
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The sources are:

N1357128733_1.IMG
N1357128799_1.IMG
N1357128865_1.IMG
N1357128931_1.IMG
N1357129012_1.IMG
N1357129078_1.IMG


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Posts in this topic
- Bjorn Jonsson   Processed Cassini Jupiter Images   Aug 3 2005, 10:26 PM
- - Sunspot   QUOTE (Bjorn Jonsson @ Aug 3 2005, 11:26 PM)N...   Aug 3 2005, 10:39 PM
|- - Bjorn Jonsson   QUOTE (Sunspot @ Aug 3 2005, 10:39 PM)Where a...   Aug 3 2005, 10:53 PM
|- - tedstryk   I came across a view like the one of Io but with G...   Aug 3 2005, 11:06 PM
- - Toma B   Bjorn Jonsson what program can I use for wieving *...   Aug 4 2005, 02:24 PM
- - Toma B   by the way those images look great!!!   Aug 4 2005, 02:27 PM
- - djellison   Toma B - search this forum for ' img2png ...   Aug 4 2005, 02:32 PM
|- - tedstryk   Here is the best I could do with the ganymede imag...   Aug 4 2005, 06:36 PM
- - djellison   ted - what range are the source images in? Doug   Aug 4 2005, 07:24 PM
|- - tedstryk   The sources are: N1357128733_1.IMG N1357128799_...   Aug 4 2005, 10:03 PM
- - djellison   I think they must have had some sort of 'Red-F...   Aug 5 2005, 12:07 PM
|- - tedstryk   Perhaps this was done in sympathy with Voyager...   Aug 5 2005, 06:27 PM
- - scalbers   Might be interesting to redo the Cassini global cy...   Aug 22 2005, 06:45 PM
|- - scalbers   QUOTE (scalbers @ Aug 22 2005, 06:45 PM) ...   Nov 21 2009, 07:00 PM
|- - scalbers   QUOTE (scalbers @ Nov 21 2009, 07:00 PM) ...   Mar 30 2012, 04:42 PM
- - alan   Jupiter's Clouds from Cassini http://antwrp.g...   Sep 11 2005, 05:16 AM
|- - Bjorn Jonsson   Here is a heavily processed mosaic of the Great Re...   Sep 11 2005, 07:24 PM
- - Ian R   Awesome work, Bjorn!   Sep 12 2005, 01:15 AM
- - Ian R   Now, I'm usually a RAW images man - I like put...   Dec 15 2009, 03:28 PM
- - Ian R   A comparison of an image from the PDS, before and ...   Dec 15 2009, 03:40 PM
- - Ian R   Jupiter and Io, two days before (October 12th):   Dec 15 2009, 03:54 PM
- - Ian R   Jupiter and Callisto (I think?) on the 1st of Octo...   Dec 15 2009, 04:07 PM
- - Ian R   Last of all, for the time being, a classic view of...   Dec 15 2009, 04:19 PM
- - Ian R   Here's a 4-frame NAC mosaic from the 10th Dece...   Dec 18 2009, 09:41 AM
- - Ian R   ...and a rather pretty view of Io transiting the J...   Dec 18 2009, 02:57 PM
|- - tedstryk   Wow, that one is exquisite!   Dec 18 2009, 03:15 PM
- - Ian R   Thanks Ted! It took me a little while to fi...   Dec 18 2009, 03:50 PM
- - machi   Very nice images! Jupiter is one of the most p...   Dec 18 2009, 04:02 PM
|- - ugordan   QUOTE (machi @ Dec 18 2009, 05:02 PM) Jup...   Dec 18 2009, 06:04 PM
|- - Ian R   QUOTE (machi @ Dec 18 2009, 04:02 PM) Ima...   Dec 19 2009, 11:00 AM
|- - tedstryk   For a different perspective, here is a Galileo/gro...   Dec 19 2009, 04:40 PM
- - Paolo   wow! I set the image of Ganymede transiting as...   Dec 18 2009, 08:22 PM
- - nprev   Knockout work again, Ian & Gordan! What am...   Dec 18 2009, 08:58 PM
- - Ian R   Good grief Gordan - you just keep on coming up wit...   Dec 19 2009, 10:00 AM
|- - nprev   QUOTE (Ian R @ Dec 19 2009, 02:00 AM) the...   Dec 19 2009, 10:05 AM
- - Ian R   Nice one Nprev - maybe Doug could have some T-shir...   Dec 19 2009, 10:55 AM
- - Ian R   A vista of Jupiter and Io from the 10th of Decembe...   Dec 19 2009, 11:22 PM
|- - tedstryk   Beautiful image, although the background could use...   Dec 19 2009, 11:26 PM
- - Ian R   Thanks for the pointer, Ted - I've uploaded a ...   Dec 19 2009, 11:46 PM
|- - tedstryk   Thanks! As for the image background, if I had...   Dec 20 2009, 04:22 AM
|- - tedstryk   Here is a closeup detail from January 1, 2001, aga...   Dec 20 2009, 09:56 PM
- - Ian R   Nice one Ted. Here's another Jupiter-Io pairin...   Dec 21 2009, 12:39 PM
|- - ugordan   Hey, nice one! I don't recall seeing that ...   Dec 21 2009, 12:50 PM
- - Ian R   Thanks Gordan! Here's the full-disc, tw...   Dec 21 2009, 01:39 PM
- - Ian R   This is a four-frame NAC mosaic from December 8th,...   Dec 23 2009, 08:12 AM
- - Bjorn Jonsson   This is a 2x2 mosaic of Cassini images obtained on...   Jul 10 2012, 02:20 PM
- - Bjorn Jonsson   The recent Great Red Spot (GRS) 'disruption...   Jun 11 2019, 07:41 PM
- - JRehling   Fantastic and fascinating stuff, Bjorn. I've b...   Jun 12 2019, 07:02 AM


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