Processed Cassini Jupiter Images, Fun with the PDS files |
Processed Cassini Jupiter Images, Fun with the PDS files |
Aug 3 2005, 10:26 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 |
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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Aug 22 2005, 06:45 PM
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Might be interesting to redo the Cassini global cylindrical movie of Jupiter in color. The released version was relatively low in resolution, yet the original was at higher resolution judging from one of the still images released. This is the 2-D interpolated movie I'm referring to.
-------------------- Steve [ my home page and planetary maps page ]
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Nov 21 2009, 07:00 PM
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#3
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Might be interesting to redo the Cassini global cylindrical movie of Jupiter in color. The released version from the CICLOPS website was relatively low in resolution, yet the original was at higher resolution judging from one of the still images released. This is the 2-D interpolated movie I'm referring to. This has in fact been done as a part of a new Science On A Sphere presentation. The Jupiter animation looks great at higher resolution. The next thing I'm checking into is whether this movie from the Cassini Dec 2000 flyby is available in a stand alone version. The full 1.6 GB SOS presentation where the Cassini animation is embedded can be downloaded here. |
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Mar 30 2012, 04:42 PM
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#4
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
This has in fact been done as a part of a new Science On A Sphere presentation. The Jupiter animation looks great at higher resolution. The next thing I'm checking into is whether this movie from the Cassini Dec 2000 flyby is available in a stand alone version. The full 1.6 GB SOS presentation where the Cassini animation is embedded can be downloaded here. And more specifically the individual frames for the Jupiter animation can be found here: http://svs.gsfc.nasa.gov/vis/a000000/a0036...1x1801_2x1_30p/ This is probably the best version for this Cassini Jupiter animated dataset that I've come across. Now we just have to make an animation file for this (e.g. an MP4). Steve -------------------- Steve [ my home page and planetary maps page ]
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