Reprocessing Historical Images, Looking for REALLY big challenges? |
Reprocessing Historical Images, Looking for REALLY big challenges? |
Apr 21 2005, 11:26 PM
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Member Group: Members Posts: 123 Joined: 21-February 05 Member No.: 175 |
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May 17 2005, 01:26 PM
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Solar System Cartographer Group: Members Posts: 10188 Joined: 5-April 05 From: Canada Member No.: 227 |
I promised earlier that I would post something from Surveyor 7 - and now I have to as I see Ted is about to trump me! So here are two images from Surveyor 7:
s7a.jpg is a detail, half the original resolution of my full pan but very heavily jpegged to make it small enough to post. s7b.jpg is the full pan, reduced enormously in size. The full pan is about 10,500 pixels wide. These were made by scanning ten prints of mosaic sections, joining them and removing the frame to frame tonal variations and other defects. Incredibly, in some areas it was even possible to correct mosaicking errors in the originals. I have also made true full-resolution pans of a small area by scanning individual frames and mosaicking by hand. I will post something from that another time. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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May 17 2005, 07:39 PM
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
Phil:
Very, very nice! Now, the $64,000 question (probably easily answered with someone with an eye for sun angles and knowledge of the landing point): Which way are we pointing? And are the rim mountains of Tycho (or any other large crater) visible, or what? -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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May 17 2005, 08:01 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (Bob Shaw @ May 17 2005, 02:39 PM) Phil: Very, very nice! Now, the $64,000 question (probably easily answered with someone with an eye for sun angles and knowledge of the landing point): Which way are we pointing? And are the rim mountains of Tycho (or any other large crater) visible, or what? The following comes from my recollection of the supporting text in the NASA publication "Exploring Space with a Camera," where the landing point and orientation of the lander were discussed in detail. The "mountain range" visible at the horizon in Phil's first image *may* be the northeast rim of Tycho. It may also be the ejecta ridges concentric to the rim. Surveyor VII landed about 40 km northeast of the main rim. The topography is *still* poorly-enough understood that it's not clear whether or not the ridges of ejecta would break its line-of-sight to the uplifted rim. But the mountains visible on the horizon are in the right direction to be the actual rim -- if the rim sticks up high enough to be visible from 40 km away. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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