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Making anaglyph images, Methods and software
stewjack
post Aug 17 2012, 09:20 PM
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I have found more than one good program to make anaglyphs from the same size images of the L & R HAZ and NAV Camera's, but for long baseline anaglyphs you need to do something called "registering" one of the images with the other. Five years ago I had such a program, but not any longer.

Questions
OS Windows 7

1. Does anyone know of such a program that is simple and effective. It doesn't have to be free - but not more than $100!

2. (GIMP) I can create anaglyphs using a Gimp plug-in, if I import the two images as layers. What I haven't been able to figure out is how to make the top layer transparent. Then assume I could slide the top layer around until it is registered.

Can anyone tell me how to adjust the transparency of the top layer?

Gimp is such a pain I would probably pay for a program if I did much of this. I spent about 20 hours messing about with Gimp without getting anywhere. It was only when I accidentally imported color images that the plug-in worked! So now I "increase" the color depth in my images (using Irfan), and save them out as grey-scale images with something called a "color space." It works! What can I say, the plug-in was last updated in 2008! I would love something more automated, but I won't be using it that much.

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mcaplinger
post Aug 17 2012, 09:48 PM
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QUOTE (stewjack @ Aug 17 2012, 02:20 PM) *
1. Does anyone know of such a program that is simple and effective.

Free. http://stereo.jpn.org/eng/stphmkr/


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Disclaimer: This post is based on public information only. Any opinions are my own.
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stewjack
post Aug 17 2012, 10:56 PM
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QUOTE (mcaplinger @ Aug 17 2012, 04:48 PM) *


How does it register two images if the images are of different sizes, and/or slanted at a different angles? Does it make the second image semi-transparent so that you can register one image with the other easily.

Lets say the Rover drives 200 meters latterly (long base line), but the crater is 20% bigger in the second image because the rover has also driven 100 meters closer to the crater. Lets also say one image was taken by the Mastcam camera and another by a NavCam camera.

I made an anaglyph from crops of two MARDI images. There had been both quite noticeable rotation and altitude changes between the two images. After many hours I got an anaglyph that was barely worth the name. Heck I will upload it because I can no longer trust my own judgement about its quality. The craters keep turning into mounds. Remember I didn't try for accuracy just a 3d effect. Does it have a 3d effect? These are much easier to do if you have the correct program.

EDIT Actually I double checked and there was actually little rotation.

http://mars.jpl.nasa.gov/msl-raw-images/ms...0476E1_DXXX.jpg
http://mars.jpl.nasa.gov/msl-raw-images/ms...0485E1_DXXX.jpg

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3d_mars
post Aug 18 2012, 03:31 PM
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QUOTE (stewjack @ Aug 17 2012, 02:56 PM) *
How does it register two images if the images are of different sizes, and/or slanted at a different angles?


Here is a link to the documentation. The page that specifically answers your question is here.
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