Posted by Krs5 on URL: http://imagej.273.s1.nabble.com/low-contrast-image-analyses-tp5022186p5022187.html
Dear Jorge,
Sounds you are looking for an Active contour (also known as Snake) plugin. There are several on the imageJ website. The link to the Thomas Boudier website seems to be lost but you can find the plugin at http://imagejdocu.tudor.lu/plugin/segmentation/active_contour/start
Best wishes
Kees
Dr Ir K.R. Straatman
Senior Experimental Officer
Advanced Imaging Facility
Centre for Core Biotechnology Services
University of Leicester
www.le.ac.uk/advanced-imaging-facility
ImageJ workshops 15 and 16 July, Leicester, UK
-----Original Message-----
From: ImageJ Interest Group <[hidden email]> On Behalf Of Jorge A. Santiago-Blay
Sent: 14 May 2019 15:45
To: [hidden email] Subject: low contrast image analyses
Hello ImageJ users:
A colleague of mine and I are analyzing fossil leaf images with damage markings. The images themselves have low contrast and enhancing contrast followed by thresholding is not helping much.
The next idea we have is to click on a well defined damaged area and tell ImageJ to expand the pixels from the clicked point until it "sees" a boundary. Is there a way to do that? In other words, what we are trying
*not* to do, is to manually tell ImageJ what areas to calculate as it will take a long time.
If you have a constructive suggestion, please kindly email me directly, [hidden email]