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Bug 99 - montaging scaled images results in the scaling component disappearing
montaging scaled images results in the scaling component disappearing
Status: RESOLVED WONTFIX
Product: Fiji
Classification: Unclassified
Component: TrakEM2
unspecified
PC Linux
: P2 normal
Assigned To: Stephan Saalfeld
Depends on:
Blocks:
 
Reported: 2009-11-05 06:54 CST by Albert Cardona
Modified: 2012-04-20 22:27 CDT
1 user (show)

See Also:

Description Albert Cardona 2009-11-05 06:54:03 CST
1. Select 4 unregistered images.
2. 't' to transform them. Enlarge the bounding box by a factor of 2 or 3.
   Push 'return' to apply.
3. Montage the images. All images are scaled down to the original dimensions, despite being positioned in space near where the top-left coordinate of the scale image was.

I would have expected the reference tile to provide reference scaling/shear/rotation too. And if anything, that all registered tiles scale back without their translational component respecting a non-existing scaling component.
Comment 1 Stephan Saalfeld 2009-11-05 14:47:13 CST
Did you montage with a rigid model or a translation?  These models do not contain a scale component and will thus undo it.  Similarity and Affine won't.  If you wish to preConcatenate the result to the existing transformation of the selected patch (what if there are several locked?), we could do that as an option may be.

As an alternative, the registration could work on the transformed images which would be possible by, at least temporarily for that purpose, putting the affine transformation into the CoordinateTransform which leaves a translation for the affine.  More thoughts?

Anyway---that's not a bug but just a consequence of the currently used handling of affine transforms in TrakEM2's registration tools.
Comment 2 Johannes Schindelin 2012-04-20 22:27:03 CDT
Adjusting the status to reality.