free hand cropping Z dimension

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free hand cropping Z dimension

Matiar Jafari
Dear ImageJ List,

I was wondering if anyone here knows of a way to crop free hand in the
Z direction.  For example im analyzing dendritic spines and it would
be a lot easier to automate the process if i was able to eliminate
branches that go off in the Z as i do not want to analyze that branch.
 A Z slice cropper would not suffice as it would crop part of the
dendrite that I'm trying to analyze.  The program i deconvolve with
allows me to do a freehand crop in the XY however not in the Z(only
box), thus the solution would probably be to mess with the dimensions
temporarily so that the ZY or ZX becomes the XY however i don't know
how to do this.  Any ideas???

Your help is greatly appreciated.

Thank You
-------
Matiar Jafari
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Re: free hand cropping Z dimension

ctrueden
Hi Matiar,

In Fiji's 3D Viewer you can do a free-hand "Fill selection" operation to
crop out portions of the data. For details, see:
  http://132.187.25.13/home/?category=Download&page=Viewer3D

The result will be that anything within the selection is blacked out in the
original image stack (which stays open in a separate window). You could then
run your analysis on that image stack and avoid picking up the undesired
spines.

HTH,
Curtis

On Wed, Sep 15, 2010 at 8:42 PM, Matiar Jafari <[hidden email]>wrote:

> Dear ImageJ List,
>
> I was wondering if anyone here knows of a way to crop free hand in the
> Z direction.  For example im analyzing dendritic spines and it would
> be a lot easier to automate the process if i was able to eliminate
> branches that go off in the Z as i do not want to analyze that branch.
>  A Z slice cropper would not suffice as it would crop part of the
> dendrite that I'm trying to analyze.  The program i deconvolve with
> allows me to do a freehand crop in the XY however not in the Z(only
> box), thus the solution would probably be to mess with the dimensions
> temporarily so that the ZY or ZX becomes the XY however i don't know
> how to do this.  Any ideas???
>
> Your help is greatly appreciated.
>
> Thank You
> -------
> Matiar Jafari
>
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Re: free hand cropping Z dimension

Gabriel Landini
On Wed, Sep 15, 2010 at 8:42 PM, Matiar Jafari <[hidden email]>wrote:
> The program i deconvolve with
> allows me to do a freehand crop in the XY however not in the Z(only
> box), thus the solution would probably be to mess with the dimensions
> temporarily so that the ZY or ZX becomes the XY however i don't know
> how to do this.  Any ideas???

Would Image>Stacks>Reslice do what you want?
Cheers

Gabriel