Re: Is it possible to increase max zoom to more than 3200% ?

Posted by Bruns, Christopher on Nov 04, 2010; 4:21pm
URL: http://imagej.273.s1.nabble.com/Is-it-possible-to-increase-max-zoom-to-more-than-3200-tp3686508p3686510.html

On 11/4/10 11:03 AM, "Michael Schmid" <[hidden email]> wrote:
[...]
> you could add the pixel values as an overlay with a very small font
> size, but I fear that this will make ImageJ react rather slowly - at
> least for large images.

Thank you Michael for your informative response.

Yes.  My first version of the plugin was slow until I modified it to only
produce the overlay for pixels that are actually displayed.  Now the
performance is excellent.  My desire for greater zoom levels is precisely to
avoid always having to use a "very small font".  I want something easier on
the eyes.

> Magnifications>32 would need a modification of the ImageCanvas class.

It so happens that my plugin already creates a derived class from
ImageCanvas.  Do you think I might be able to implement enhanced zooming
from there?  If so, can you give me some hints about what changes might be
required?

Christopher

[...]

> Michael
> ________________________________________________________________
>
> On 4 Nov 2010, at 15:03, Bruns, Christopher wrote:
>
>> I am a new ImageJ user.  I recently wrote a plugin that prints the
>> intensity value of each pixel over the pixel at higher zoom
>> levels.  When using this plugin, users want to zoom in more than
>> 3200%.  Another 2 or 3 levels of zoom would probably be adequate.
>>
>> Is there a way to enable additional deeper zoom levels to ImageJ?
>> Thanks in advance.
>>
>> Christopher Bruns