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HiRISE DEM's
Stu
post Sep 24 2009, 01:40 PM
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QUOTE (antipode @ Sep 24 2009, 09:04 AM) *
on Mars, on Mars, on Mars...


Ah, always nice to meet a fellow KSR fan... smile.gif


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ustrax
post Sep 24 2009, 02:19 PM
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Doug, that's just...beautiful. With all the beauty the word can carry. Thanks.


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climber
post Sep 24 2009, 04:38 PM
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I knew you were not going to sent the MER team "only" a postcard for the 3rd anniversary...
Very dramatic and beuatifull indeed, thanks.


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JRA
post Sep 25 2009, 02:50 AM
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Great animation djellison. I really like it a lot.

I never knew about the hi-res topography data on USGS, so I decided to download some of it for myself to play around with. I went and downloaded Victoria crater and it has everything in a .tif format (as well as the .cub files) and it all works except for the DEM .tif file. When I load it up in photoshop it's all black. I went and downloaded GDAL and loaded up the DEM .cub file and it shows up in there. I exported it as a .tif from there, but it still does not show in photoshop. Does anyone know what I'm missing here?
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elakdawalla
post Sep 25 2009, 04:06 AM
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I haven't tried to work with the DEM data at all, so this is a shot in the dark, but my first question would be: is the file 16-bit, and if so, is all the data down in the first 12 bits? That's one reason things can look black in Photoshop. Check Image > Adjust > Levels and see if the histogram shows anything at all.


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JRA
post Sep 25 2009, 04:16 AM
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The file is 16-bit. And the histogram seems to be blank.
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elakdawalla
post Sep 25 2009, 04:32 AM
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Well that's pretty much all my ideas. Guess you'll have to wait for the Sun to rise on the UK smile.gif


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djellison
post Sep 25 2009, 07:33 AM
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This is the only way I know - so far - and it's very long, convoluted, and I'm SURE there is a better way to do it - but it works.

1) Install ISIS 3 - instructions here http://isis.astrogeology.usgs.gov/document...uide/index.html
2) While letting that happen - grab one of Randy's DEM's - I'm using the Victoria Crater bundle as an example
3) Find DEM_1m_VictoriaCrater.cub.gz (it's in the ISIS_EQUI360_OC folder ) and expand it
4) Run isis2raw
5) In the 'FROM' window - point to the .cub
6) Copy and paste the path and filename into 'TO' - but change the extension to .dem or something simiar
7) U16BIT data type ( screenshot attached)
8) Hit Run.... if this bit doesn't work - it's almost certainly your ISIS3 installation that needs looking at, make sure you got all the Base Data.
9) Find the .cub and open in text edit and find this part...

/* Core description */
CORE_ITEMS = (1278,1694,1)

10) Open Photoshop, and open the .dem.raw that ISIS3 produced
11) Width is the first of those three figure under CORE_ITEMS. Height is the second. Depth should be 16 bits, Byte Order as IBM PC, Header as size 0
12) Hit OK
13) Save out as 16 bit PNG, celebrate, have lunch, dump into your favourite animation package.

I'm hoping to figure out a workflow that involved just ImageJ or Photoshop without ISIS3 (as it's a hell of an install, and a pain in the butt to get running for a temperamental artists like me smile.gif )
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djellison
post Sep 25 2009, 02:45 PM
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1080 Full HD version
http://www.archive.org/details/ColumbiaHills2009DemAnimation

Thanks to Gary Murphy for suggesting archive.org as a place to put it smile.gif
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Guest_PhilCo126_*
post Sep 25 2009, 04:57 PM
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Superb work Doug, it didn't go unnoticed on other websites & blogs cool.gif
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djellison
post Sep 25 2009, 05:05 PM
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Nancy talked about it on Universe Today, Emily did the same on planetary.org/blog

Has it shown up anywhere else? It'd be cool to know.

I HAVE noticed that it's jumped to 9000 views on Youtube. I beat the 5000+ Helen got for her world record Thriller dance routine smile.gif
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SFJCody
post Sep 25 2009, 06:53 PM
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Beautiful work as ever.
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stevesliva
post Oct 3 2009, 05:44 AM
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QUOTE (djellison @ Sep 25 2009, 12:05 PM) *
Has it shown up anywhere else? It'd be cool to know.


Doug, I get an email newsletter called "Good Morning Silicon Valley," and I think it has fairly wide circulation. It's pretty pithy and as far as email newsletters go, entertaining. You were "Off Topic" for September 28th. Sorry I didn't mention it until now, but I thought you might know! Guess youtube does let you know the referrers. I noticed a twitter post of yours from awhile back.

http://blogs.siliconvalley.com/gmsv/2009/0...-topic-344.html

That probably got some clicks outside the usual enthusiasts.
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tharrison
post Jan 10 2010, 11:10 PM
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NASA Ames is working on a stereo pipeline for automated DEM generation: http://ti.arc.nasa.gov/project/ngt/stereo/

Their documentation has instructions for HiRISE. MOC and CTX are in there as well, although I will point out that their camera model for CTX is incorrect so any CTX DEMs created with this software are inaccurate.


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elakdawalla
post Jan 21 2010, 02:35 AM
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Is this news?

First PDS Release of HiRISE DTMs

Direct link to HiRISE DTM page


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