Voyager and Galileo Images of Callisto, The Callisto images and mosaics thread Options

[mgrodzki]

When looking for good global images of Callisto… i keep seeing the same 2 or 3 and they look false color (especially from voyager). does callisto suffer from the lack of global images as europa does? also wondering if any of you magicians have worked your magic on any callisto images that are not in the mainstream.

[Decepticon]

How about this?

[tedstryk]

Well, there is this shot from Voyager:



Here is a Galileo shot (The only global view, other than a very distant one).



Here is another Galileo shot, processed by me.

[mgrodzki]

Here is a Galileo shot (The only global view, other than a very distant one).


that's the one i see all the time. those colors are whack… i guess there was missing info in that which makes the edges blue? seems like the same problem with the more well-known europa images too.

[tedstryk]

Here is a Galileo shot (The only global view, other than a very distant one).


that's the one i see all the time. those colors are whack… i guess there was missing info in that which makes the edges blue? seems like the same problem with the more well-known europa images too.

It is based on a real variation. It is just over-enhanced, and probably Violet-Green-Infrared color.

[JRehling]

It's kind of amusing how similar in appearance Mercury and Callisto are, besides being virtually identical in size. But what a difference otherwise.

[tedstryk]

I have done my own version of the C30 image. It turns out the "red" channel is IR-9680, so my "red" for doing the color here is a blend of the green channel and IR-9680, to try to approximate red. For the grayscale, I used the IR-9680 data more heavily, as the dataset, like most Galileo sets, is very limited, so I needed it to bolster the image clarity. This is at the original image scale. The quality of the original images is too poor of super-resolution (in fact, it was hard to make it look decent without shrinking it).