Re: save selection of 4 different channels

Posted by melkor2.0 on Jun 19, 2011; 10:40am
URL: http://imagej.273.s1.nabble.com/save-selection-of-4-different-channels-tp3684196p3684200.html

Yeah, I didn't think about the make inverse, it works fine
Thanks,

cheers

On 19 June 2011 12:21, Gabriel Landini <[hidden email]> wrote:

> On Sunday 19 Jun 2011, Ramon <[hidden email]> wrote:
> > Hi Mario, thanks for the idea, but doesn't work :(  I'm doing a selection
> a
> > little bit different... I make a ROI following a shape, then enlarge the
> > selection and add it to the roi manager, then XOR between them and thus I
> > get a "donut" selection. Duplicating the selection, doesn't get only the
> > image between the inner and outer circles, but a rectangular selection
> > which compress all the outer ring
>
> I think you are confused between "selection" and "image".
> Images are always rectangular. What sort of value do you expect outside the
> selection? A fixed colour, let's say black? If so then take the selection,
> Make Inverse, fill it, Make Inverse again and finally duplicate.
> Currently you cannot save an arbitrary shaped image.
>
> Cheers
> G.
>