[MINC-users] Erasing a label in Display

[Olivier Rousset]

Kate,

I am not sure this is what Joost wants... What you
propose is not to erase voxels but rather change their
label (e.g., from 9 to 0). The only way I know to
definitely erase labeled voxels is to -while in the
F-segmenting menu- hold the Ctrl key while dragging
the cursor with the right button of the mouse (I don't
know about Mac users here ;-) Alternatively typing a
"w" while the cursor is over a given voxel will also
result in the labeled voxel to be erased -that's more
for working in tight quarters.

Hope this helps,

-- Olivier

--- Kate HANRATTY <kate at bic.mni.mcgill.ca> wrote:

> Hi Joost,
> 
> The fastest way to erase all voxels of a certain
> label value in a
> volume is to go the Segmenting menu - [F] from the
> main menu - and
> select Change Labels [U]. Then follow the prompts in
> the command
> window.  
> 
> Here's what my command window looked like when I
> erased all of label 9 
> from my volume:
> 
> Label or range to change from: 9
> Label to change to: 0
> Min and max of value range: 9 9
> 
> At the "Min and max of value range:" prompt you can
> either type in the
> value of the label to be erased - and you'll have to
> type it twice -
> or type in the image intensity range (e.g. 0 - 256
> if that is the
> range of intensities in the image you are
> segmenting/painting).
> 
> HTH
> Kate.
> 
> -- 
> Kate Hanratty
> kate at bic.mni.mcgill.ca
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