Overlaying ROIs very costly

Posted by Olivier Burri on Jun 11, 2014; 3:37pm
URL: http://imagej.273.s1.nabble.com/Overlaying-ROIs-very-costly-tp5008136.html

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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