Posted by
Grant Kulik on
Jul 27, 2016; 5:41pm
URL: http://imagej.273.s1.nabble.com/Specifying-Coordinates-using-ROI-Manager-tp5016943.html
Using ImageJ, I have been trying to create concentric circles of radii 100
pixels, 200 pixels, and 300 pixels (using the specify tool in ROI manager)
around the centroid of a region that I have outlined using the freehand
draw tool. However, I have encountered two problems:
1) After selecting specify and typing in the coordinates of the centroids
of the regions I have drawn, I have noticed that after I measure all of the
ROI's centroids, the centroid of my outlined region and the centroids of
the concentric circles are not the same even though I used the coordinates
of the centroid of my drawn region to create the concentric circles around
that location. Is there a way to get the centroids of my freehand drawings
and the concentric circles to match?
2) When I select specify and type in the coordinates of the centroid of my
outlined region that I wish to create concentric circles around, ImageJ
seems to round my input to 2 decimal places. Is there a way to increase the
precision of the specify option?
Thanks in advance,
Grant
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