fiji: registering a pair of images according to another pair of images

Posted by Adrian Daerr-2 on Apr 01, 2011; 7:13pm
URL: http://imagej.273.s1.nabble.com/fiji-registering-a-pair-of-images-according-to-another-pair-of-images-tp3685173.html

Dear ImageJ users,

I would like to register images taken under very different lighting
conditions. Normal registration fails (tried mainly TurboReg, am trying
others now), I suppose because the colors and intensities change quite a
bit (sometimes the intensity jump across an edge even reverses sign when
light comes from another direction).

If I convert the images to grey images and do an edge detection (e.g.
with FeatureJ's Edges function), these processed images can be very
easily registered. The question is, can I extract the transformation and
apply it to the original pair of RGB images ?

For the moment the closest I get to my goal is to 'Extract SIFT
Correspondences' on the pair of edge-detected images, and transfer the
resulting landmark point selections onto the original images. I now just
lack a registration function which will take these SIFT correspondences
as input. Is something like that present in Fiji ?

I have been looking through the documentation a little bit*, but did not
find an answer yet.

thanks in advance
Adrian


*except for the Fiji main site which looks very strange (letters are all
mixed up when viewed with Firefox or Safari, although the text-only
browser links shows everything correctly). My guess is it's an april
fool's joke.