Deimos images, Viking and others |
Deimos images, Viking and others |
Dec 23 2009, 03:53 AM
Post
#1
|
|||
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Hi folks, as I've been working on this advent calendar thing I thought it'd be fun to dig into the Viking archive on Deimos and make my own color composite (since Viking is, as far as I know, the only mission that's gotten views on anything other than the Mars-facing hemisphere). The data is quite a bit more gnarly than I anticipated. Thanks to Peter Masek's VikingOrbiterView software though I have put together a montage of all the halfway decent Viking Orbiter images of Deimos, and I thought you guys would enjoy. Attached also is a color composite from a set taken at random (made by making an R-G-V combo, mixing a bit of the green into the V because the V is a little underexposed, and then converting to HSB and swapping in one of the much nicer clear images for the brightness channel). Anyone else want to have a go at making a pretty color combo? Anyone have any helpful comments on the color? The images in the montage are not processed at all except for removing salt-and-pepper noise and (in a few cases) doing some destriping to correct missing lines, so there'd be nothing wrong with grabbing individual images straight from the montage rather than hunting down original files. I've posted the montage in PNG format here.
The view in the attached color composite is primarily of the leading and southern hemispheres. Deimos has this weird squashed south pole -- I guess it's one big impact crater, but it's a crater with a diameter similar to that of Deimos itself. -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
||
|
|||
Dec 28 2009, 11:08 PM
Post
#2
|
|
Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
back to the orig post
QUOTE . Anyone else want to have a go at making a pretty color combo? Anyone have any helpful comments on the color? go with your gut . i know that is not scientific but even the nasa color of Deimos and Phobos are only close guesses i used these as a guide for my maps http://hirise.lpl.arizona.edu/deimos.php http://hirise.lpl.arizona.edu/phobos.php http://photojournal.jpl.nasa.gov/target/Deimos http://photojournal.jpl.nasa.gov/target/Phobos and old sites http://www.nineplanets.org/phobos.html http://www.nineplanets.org/deimos.html the two moons will have some red in them from dust from mars getting ejected by impacts so if it is consistent with the above examples and looks nice ... |
|
|
Lo-Fi Version | Time is now: 25th September 2024 - 01:32 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |