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Manipulated Mounds in Thaumasia?
8 years 9 months ago - 7 years 6 months ago #2197
by Todd
Manipulated Mounds in Thaumasia? was created by Todd
The mounds in the
Thaumasia region of Mars, taken by the Mars Reconnaissance Orbiter HiRISE camera
, have a pictorial appearance, as if they have been manipulated to appear this way. Also among the mounds, objects resembling square and rectangular structures which appear partially buried. The mounds inside the impact crater (below) were likely somehow created after the impact event.
NASA/JPL/University of Arizona Original
NASA/JPL/University of Arizona Original
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7 years 6 months ago #6832
by Todd
Replied by Todd on topic Manipulated Mounds in Thaumasia?
Here is more from HiRISE ESP_026378_1410RED taken of Thaumasia, this time processed from the EDR
PDS
raw .img files and assembled. I also did a deconvolution stretch to sharpen the images.
Below, enlarged from above.
NASA/JPL/University of Arizona original
hirise-pds.lpl.arizona.edu/PDS/EDR/ESP/ORB_026300_026399/ESP_026378_1410/
Below, enlarged from above.
NASA/JPL/University of Arizona original
hirise-pds.lpl.arizona.edu/PDS/EDR/ESP/ORB_026300_026399/ESP_026378_1410/
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7 years 6 months ago #6843
by Todd
Replied by Todd on topic Manipulated Mounds in Thaumasia?
Thanks, I found out the HiRISE stuff is by far the most challenging to process. The raw tiles have different issues than the JP2's. For starters, a lot of the tiles have some kind of bright edge bleed with image details behind it, so it makes it hard to blend them together without a nasty seam. Although they are generally noise free, there is some kind of striping noise that occasionally shows up on some the raw tiles only. Orbital photography is plagued with shadows, so getting a balance with details in the underexposed sections is difficult. If you're putting just the red image together, there's usually about 18 tiles to combine and they can be 75000px in length. 
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