Magnify an image proramatcally

[Robert Lockwood]

I have been able to create an ROI, extract the Cropped ImageProcessor. and
display the new cropped image.  I'm using Java 7 and Eclipse Kepler.

The relevant update code is below where an instance zoomImagePlus has been
created elsewhere and displayed using show().

                new ImageProcessor cursorImage = imp.getProcessor().crop();
                zoomImagePlus.setProcessor("Zoom",cursorImage);

I'd like have the image magnified by a factor of 4 but don't see how to do
it.  It appears that the AWT Canvas has a setMagnification method but I
don't see how to access it.

How may I do this?

Thanks

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[Michael Schmid]

Hi Robert,

assuming zoomImagePlus is an ImagePlus, get its ImageCanvas (ImagePlus.getCanvas) and use setMagnification of the ImageCanvas.

In ImageCanvas.paint(Graphics g) you will find how the magnification is used for displaying.

Michael
________________________________________________________________

On Dec 5, 2013, at 20:21, Robert Lockwood wrote:

> I have been able to create an ROI, extract the Cropped ImageProcessor. and
> display the new cropped image.  I'm using Java 7 and Eclipse Kepler.
>
> The relevant update code is below where an instance zoomImagePlus has been
> created elsewhere and displayed using show().
>
>                new ImageProcessor cursorImage = imp.getProcessor().crop();
>                zoomImagePlus.setProcessor("Zoom",cursorImage);
>
> I'd like have the image magnified by a factor of 4 but don't see how to do
> it.  It appears that the AWT Canvas has a setMagnification method but I
> don't see how to access it.
>
> How may I do this?
>
> Thanks

... [show rest of quote]

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ImageJ mailing list: http://imagej.nih.gov/ij/list.html

[Robert Lockwood]

Thanks, Michael.  I've not yet had a chance to try it.


On Thu, Dec 5, 2013 at 12:39 PM, Michael Schmid <[hidden email]>wrote:

> Hi Robert,
>
> assuming zoomImagePlus is an ImagePlus, get its ImageCanvas
> (ImagePlus.getCanvas) and use setMagnification of the ImageCanvas.
>
> In ImageCanvas.paint(Graphics g) you will find how the magnification is
> used for displaying.
>
> Michael
> ________________________________________________________________
>
> On Dec 5, 2013, at 20:21, Robert Lockwood wrote:
>
> > I have been able to create an ROI, extract the Cropped ImageProcessor.
> and
> > display the new cropped image.  I'm using Java 7 and Eclipse Kepler.
> >
> > The relevant update code is below where an instance zoomImagePlus has
> been
> > created elsewhere and displayed using show().
> >
> >                new ImageProcessor cursorImage =
> imp.getProcessor().crop();
> >                zoomImagePlus.setProcessor("Zoom",cursorImage);
> >
> > I'd like have the image magnified by a factor of 4 but don't see how to
> do
> > it.  It appears that the AWT Canvas has a setMagnification method but I
> > don't see how to access it.
> >
> > How may I do this?
> >
> > Thanks
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

... [show rest of quote]

--
When I was 12 I thought I would live forever.
So far, so good.

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html