How to unzip LROC CDR images? |
How to unzip LROC CDR images? |
 Jul 7 2010, 10:38 PM
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Newbie  Group: Members Posts: 5 Joined: 27-December 09 Member No.: 5143  |
I have downloaded some LROC CDR 500MB images but am unable to unzip them. WinZip gives an error message - I suspect the zip file is too big for it. Irfan says it can't read the headers. NASAview seems to unzip them but displays them as completely white images but for a few hints of craters that appear as very pale grey.
Could anyone suggest an unzip program? Ideally I would like to display the images in Photoshop. Terry. |
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Jul 9 2010, 02:41 AM
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Solar System Cartographer Group: Members Posts: 10226 Joined: 5-April 05 From: Canada Member No.: 227 |
As I said I usually use the EDR, not the CDR. But there was no problem opening the CDR as a Photoshop raw. It's not zipped. Your older version of Photoshop might not allow you to open a raw as 16 bit, though I would have expected it to be Ok. If it's only the size that's a problem, all i can suggest immediately is to open the first 30000 lines or whatever the limit turns out to be. The other issue - as 16 bit, most of the detail is in the first 12 bits and you need to do a histogram stretch to get a nice-looking image.
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 PDF: 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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TerryH How to unzip LROC CDR images? Jul 7 2010, 10:38 PM
Phil Stooke They are zipped? I use the EDRs, but I thought th... Jul 8 2010, 12:28 PM
TerryH I download them from the WMS browser at http://wms... Jul 8 2010, 10:36 PM Phil Stooke Ok, I'm doing one as an experiment, but it... Jul 8 2010, 11:51 PM JohnVV i am guessing that win is defaulting to " hel... Jul 9 2010, 07:05 AM TerryH Thanks for you suggestions but I am still not gett... Jul 13 2010, 11:50 AM Phil Stooke You have to use 'open as...' (not 'ope... Jul 13 2010, 01:14 PM JohnVV QUOTE I still cannot open img files in Photoshop -... Jul 13 2010, 06:47 PM TerryH Phil...I have now opened .img EDR/CDR images in th... Jul 13 2010, 09:23 PM Stu Glad you got sorted out Terry. People forget som... Jul 13 2010, 09:55 PM ElkGroveDan RE: How to unzip LROC CDR images? Jul 13 2010, 11:02 PM JohnVV chill, my apologies ,bad day . Jul 14 2010, 02:18 AM cassioli I have a different problem: some of the TIFF image... Sep 17 2010, 11:48 AM Phil Stooke Those are wide angle images. The strips are diffe... Sep 17 2010, 12:06 PM cassioli QUOTE (Phil Stooke @ Sep 17 2010, 12:06 P... Sep 17 2010, 12:12 PM Phil Stooke Try the links here:
http://lpod.wikispaces.com/Se... Sep 17 2010, 12:45 PM cassioli thanks, amazing site! Sep 17 2010, 01:24 PM JohnVV there is a bit of code to "fix" them
an... Sep 17 2010, 06:04 PM |
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