ImageJ interaction: ROI Manager etc.

Posted by karo03 on Jul 05, 2007; 8:41am
URL: http://imagej.273.s1.nabble.com/ImageJ-interaction-ROI-Manager-etc-tp3698918.html

Hi, I am just exploring the niceties of ImageJ interactive abilities:  
Some questions for clarification

Using the ROI Manger with display, the numbers in the display usually  
don't correspond with the numbers of the ROI's in the list, at least  
after having deleted any object from the list. Is that intended?

Using the Wand on a mask image clicking into the background will  
select the next most connected object on the right. Is that intended?

Having a list of objects in the ROI manager, I would like to correct  
one selected, either cut it into two or change it and than update it  
in the ROI manager. My quite complicated way was:
        1. Select the object
        2. Change the mask image by drawing, deleting, etc.
        3. Remove the selection
        4. Multiple object select by doWand with shift if there are more  
than one object after correction
        5. Add the object(s) to ROI Manager
        6. Find the formerly selected object and delete it in the ROI list
Another again complicated method is:
        1. correct the mask image
        2. (re)run analyze particles...
        3. control the objects
        4. if necessary go to 1.
Is there any idea to improve this proceeding?

Thanks in advance
Karsten