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Re: Two cameras : Two images : Re-size/-scale

Posted by Albert Cardona-2 on Feb 13, 2014; 12:54pm
URL: http://imagej.273.s1.nabble.com/Two-cameras-Two-images-Re-size-scale-tp5006515p5006516.html

2014-02-13 4:04 GMT-05:00 Ellen Arena <[hidden email]>:

> I just need a 'nudge' to get me started here...
>
> I have two images - taken on two different cameras on the same scope.  I
> need to draw ROIs on one and overlay them on the other
> - but they are different sizes/scales.  Does anyone have any
> recommendations to get me started??  I can send you two example images of
> beads - one from each camera - if needed.
>
> Any help would be great!
>


An approach could be:

1. Draw ROI in image A.
2. Create a mask from the ROI.
3. Register image A onto image B.
4. Apply the same transform to the mask.
5. Convert the transformed mask to a ROI.
6. Set the roi onto image B.

The registration could be done with "Register Virtual Stack Slices" Fiji
plugin, which saves the transforms and lets you apply them to other images.

Converting a ROI to a mask and a mask to a ROI are built-in ImageJ
functions.

Best,

Albert


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http://albert.rierol.net
http://www.ini.uzh.ch/~acardona/

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