On Sat, Jun 22, 2013 at 8:31 AM, Isaac Perez <
[hidden email]>wrote:
> I've recently started using ImageJ and I'm still learning to use it.
> Install the plugin for mathematical morphology
> (
http://rsbweb.nih.gov/ij/plugins/gray-morphology.html) and am
> starting to try it with some images.
>
> I'm interested in trying morphological operators in histological
> images are quite large (3000 x 4000 pixels) and when I apply the
> mathematical morphology operators on them the result takes some time
> to be generated
>
> Specifically,
>
> Erode: 33.238 sec
> Dilate: 34.943 sec
> Opening: 67.104 sec
> Closing: 70.217 sec
> Fast Erode: 8.280 sec
> Fast Dilate: 9.166 sec
> Fast Opening: 16.442 sec
> Fast Closing: 16.432 sec
If you are using only circular masks, use Min filter for erosion and Max
filter for dilation (and combination of those for open/close) in my computer
that is much faster than any of those quoted numbers in a 3000x4000 image. (<2
sec).
Perhaps you are using an RGB image? That would take x3 the processing time.
If not, maybe something is wrong in your setup.
Try the benchmark to see where your system stands:
http://imagejdocu.tudor.lu/doku.php?id=faq:technical:are_there_performance_statistics_to_compare_against_my_systemCheers
Gabriel
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