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Cassini Images Of The Galileans
ugordan
post Dec 9 2005, 05:25 PM
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Has anyone out there experimented with processing the very limited image dataset of Jupiter's icy moons? Most images I found that targeted them specifically are horribly underexposed to the point they look like 4 bit images.
I tried fiddling around with what can be done, below's my poor attempt at color compositing Europa, Ganymede and Callisto images. I took 3 polarized UV and GRN filtered images and stacked them together to reduce noise. I also stacked various IR images except for Europa where only a single red frame existed and, consequently, the red channel is very noisy.
Oh, and then there's the *awful* 2Hz banding problem. It's quite noticeable, even in stacked images. I don't know how to remove it as it's at the point of being random brighter pixels (severe underexposure) rather than a brightness gradient...

Here's what I came up, the images are magnified 3x:
Attached Image


BTW, I was wondering whether we could open a dedicated thread to posting Cassini processed images from the PDS (be them Jupiter or Saturn ones), there's really a *lot* of material that could provide.. well, very pretty images if nothing else biggrin.gif
Sort of like that "processing of the historical imagery" thread...

Does that sound like a bad idea, is anyone interested?


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