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Re: 3D Viewer- Animation's transparency when rotating

Posted by Ignacio Arganda-Carreras-2 on Jul 09, 2015; 8:38am
URL: http://imagej.273.s1.nabble.com/3D-Viewer-Animation-s-transparency-when-rotating-tp5013360p5013478.html

Image > Stack > Reslice

In general, if you press the key "L", the Command Finder will pop up and
there you can type any command you want.

Cheers!

On Wed, Jul 8, 2015 at 2:04 PM, Andrea Chicano <[hidden email]>
wrote:

> Hi guys!
>
> I have the same problem of Maria. My segmented areas look transparent in
> some regions depending on the angle of visualization. I have not been able
> to apply Reslice command to make the spacing between stacks smaller. Could
> someone help me to find Reslice command, please?
>
> Thanks!
>
> 2015-06-30 18:11 GMT+02:00 Curtis Rueden <[hidden email]>:
>
> > Hi Maria,
> >
> > > When my object rotates, the animation goes transparent in some
> > > sections (here I'm able to see the internal layers) and opaque in
> > > others.
> >
> > The differences in transparency are an artifact of how the 3D Viewer
> > generates its volume visualization. It is actually a series of
> > semi-transparent slices oriented at the closest angle to "top down" from
> > the camera. You can see this most dramatically if you:
> >
> > A) visualize an image stack with very few slices, such as the Mitosis
> > sample
> > B) orient the volume at an edge or corner, then rotate back and forth
> > across the border
> >
> > One way to minimize the discrepancy is to use the Reslice command with
> > smaller output spacing, and "Avoid interpolation" unchecked. As a rule of
> > thumb: the closer your Z resolution is to your X and Y resolution, the
> less
> > of a discrepancy there will be.
> >
> > You could also try other 3D visualization solutions with your data, such
> as
> > the BigDataViewer [1], Volume Viewer [2], or Icy [3].
> >
> > Regards,
> > Curtis
> >
> > [1] http://imagej.net/BigDataViewer
> > [2] http://imagej.net/Volume_Viewer
> > [3] http://imagej.net/Icy
> >
> >
> > On Tue, Jun 30, 2015 at 9:43 AM, mduenas <[hidden email]> wrote:
> >
> > > Hello all,
> > >
> > > I'm currently using 3D Viewer and I'm having trouble visualizing the
> > > animation of my object. When my object rotates, the animation goes
> > > transparent in some sections (here I'm able to see the internal layers)
> > and
> > > opaque in others. Is there a way to have the animation just be were it
> > goes
> > > transparent, rather than flashing back and forth?
> > >
> > > Thank you,
> > >
> > > Maria
> > >
> > >
> > >
> > > --
> > > View this message in context:
> > >
> >
> http://imagej.1557.x6.nabble.com/3D-Viewer-Animation-s-transparency-when-rotating-tp5013360.html
> > > Sent from the ImageJ mailing list archive at Nabble.com.
> > >
> > > --
> > > ImageJ mailing list: http://imagej.nih.gov/ij/list.html
> > >
> >
> > --
> > ImageJ mailing list: http://imagej.nih.gov/ij/list.html
> >
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>



--
Ignacio Arganda-Carreras, Ph.D.
Institut Jean-Pierre Bourgin, UMR1318 INRA-AgroParisTech
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