Posted by
Jeff Brandenburg on
Aug 15, 2005; 2:14pm
URL: http://imagej.273.s1.nabble.com/how-to-retain-a-line-selection-tp3705040p3705044.html
The ROI Manager plugin (Analyze: Tools: ROI Manager...) lets you
maintain a list of selections, but as distributed it doesn't let you
display all selections at once.
I did a modified version of ROI Manager several years ago that allowed
me to display and measure several different ROIs at once, but it
involved a lot of clumsy and heavy-handed modifications to other
classes (including, among others, ImagePlus), and so it wasn't really
suitable for release.
Would it work in your application to mark (Edit: Draw) each selection
after you measure it? It would modify your working copy of the image,
but at least you'd be able to see what you've done.
On Aug 15, 2005, at 2:50 AM, Alpesh Khushalchand Shukla wrote:
> I have images which have line like features, and I need to measure
> length of each line segment. I am
> doing this manually, i.e., measuring the length of each line segment,
> looking up the length on the
> toolbar, and typing it in Kaleidagraph. I cannot use the automatic
> measure because my TEM images
> are not very high-contrast images, and thresholding would give a very
> high amount of error.
>
> My problem: Is there a way to retain a line selection? When I go to
> the next feature, the last one
> disappears. this creates confusion as I have to keep a close track of
> which line segments I have
> measured. If they can be marked, the job (which is really tedious)
> will become a little easier.
>
> Thanks
>
> Alpesh
>
--
-jeffB (Jeff Brandenburg, Duke Center for In-Vivo Microscopy)