Possible bug in Edit->Selection->Create Selection

Posted by Neil Fazel on Mar 06, 2014; 6:21pm
URL: http://imagej.273.s1.nabble.com/Possible-bug-in-Edit-Selection-Create-Selection-tp5006803.html

I have a thresholded grayscale image on which I used Edit->Selection->Create Selection; the selection which was created is not closed, i.e. it does not fully contain the thresholded region, as I think it should. Also, when I use getSelectionCoordinates() on it, it returns only 4 points, whereas the selection has many more vertices.

To reproduce, please

1) import the .txt image into ImageJ,
2) threshold it (using 0.644 and 77 for the lower & upper threshold levels, resp.).
3) use Edit->Selection->Create Selection to create a selection.

You will see that the selection skips thresholded regions at the bottom of the image.

I tried 3 times to attach the relevant files (.txt, .roi, .tiff) necessary to reproduce the problem, but each time ImageJ server rejected them (it doesn't like .roi or .zip files). Who should I email them to?

Vielen Dank!
Neil

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