Re: Overlaying ROIs very costly

Posted by ctrueden on Jun 11, 2014; 4:15pm
URL: http://imagej.273.s1.nabble.com/Overlaying-ROIs-very-costly-tp5008136p5008137.html

Hi Oli,

> Any attempt to zoom in or pan on the image is extremely slow (seconds
> or 10s of seconds).

You have a lot of objects in that overlay, so a little sluggishness is not
surprising. That said, on my system (2.4 GHz Intel Core i7) the zoom is
rather instantaneous, except for between the 33% and 50% zoom settings,
where it takes ~500ms.

How old is your system?

Regards,
Curtis


On Wed, Jun 11, 2014 at 10:37 AM, Burri Olivier <[hidden email]>
wrote:

> Hi all,
>
> Just curious if anyone else is experiencing very slow response time from
> the image window when there is an overlay.
>
> I have an RGB Image with two overlays corresponding to segmentations in
> different channels. The image is 2500x1800px.
> Overlays are 2px thick and of different colors
>
> Any attempt to zoom in or pan on the image is extremely slow (seconds or
> 10s of seconds).
>
> You can find the image being troublesome here:
> https://dl.dropboxusercontent.com/u/86578924/overlayProblem.tif (18Mb,
> RGB)
>
> This happened running Fiji under Win7 x64, Corei7 3.4GHz with 24Gb RAM
>
> All the best
>
> Oli
>
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