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 |
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) |
In reply to this post by Alpesh Khushalchand Shukla
You may want to download Wayne's "Measure and Label" plugin:
http://rsb.info.nih.gov/ij/plugins/measure-label.html It is most convenient to use if you assign a shortcut key to the plugin. Rob ----- Original Message ----- From: "Alpesh Khushalchand Shukla" <[hidden email]> To: <[hidden email]> Sent: Monday, August 15, 2005 1:50 AM Subject: how to retain a line selection > 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 > |
I found this Measure and label macro useful. One more
question: how can I assign a shortcut key? (so that I don't have to go to plugins-macro-measure&label) everytime? Alpesh --- Robert Baer <[hidden email]> wrote: > You may want to download Wayne's "Measure and Label" > plugin: > http://rsb.info.nih.gov/ij/plugins/measure-label.html > > It is most convenient to use if you assign a > shortcut key to the plugin. > Rob > > ----- Original Message ----- > From: "Alpesh Khushalchand Shukla" > <[hidden email]> > To: <[hidden email]> > Sent: Monday, August 15, 2005 1:50 AM > Subject: how to retain a line selection > > > > 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 > > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com |
> I found this Measure and label macro useful. One
> more question: how can I assign a shortcut key? > (so that I don't have to go to plugins-macro-measure&label) > everytime? Change the first line of the macro from macro "Measure and label" { to macro "Measure and label [F1]" { reinstall it and you will be able to run it by pressing the F1 key. More information and examples can be found at http://rsb.info.nih.gov/ij/developer/macro/macros.html#shortcuts -wayne |
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