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Overlaying two images help needed

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Amadeus
Amadeus 2013-1-19
Hello,
I have a .nii file (call it nii) and a track fiber mapping (call it M) that I want to overlay it onto. But I could not figure out a good way to do it. Here are some specifications I need:
  • At the bottom there will always be nii.img and I will put M (my tracking map) on.
  • I want to give M a colour, say it red
  • I guess I need to set a alpha which will work as transparency constant. If nii.img has a greater value, I want to see it more intense, otherwise M should be more intense.
note: there are 60 slices. (both of them has the size: 96*96*60)
Could you please help me?
Best regards, Amadeus

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Image Analyst
Image Analyst 2013-1-19
Use the imshowpair() function in the Image Processing Toolbox. It's new within the past version or two.
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Amadeus
Amadeus 2013-1-19
This is exactly what I was looking for. Thank you so much! But I could not figure out a way to show the first image gray. Could you please help me?
Image Analyst
Image Analyst 2013-1-20
I haven't used it yet. If it doesn't work for you then maybe you'll have to create an RGB image by averaging one or more color channels.

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