Hi Question is about eleminating unwanted regions in binary image.
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I work on fundus image , bwareaopen() function removes all connected components fewer than P pixels. But in my image I need to remove all the regions which have more than 11 pixels how can I do so? And how can I calculate the metrics of each region and eliminate the structures having metrics less than 0.95?
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Image Analyst
il 10 Gen 2016
So P=11, right? Did you try this:
binaryImage = bwareaopen(binaryImage, 11);
Regarding "metrics", I think you need to do a spatial calibration, and I attach my demo for that. So then use regionprops() and multiply linear measurements by the spatial calibration factor and area measurements by the spatial calibration factor squared.
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Meghana Dinesh
il 13 Gen 2016
You can do what Image Analyst mentioned:
binaryImage_out = bwareaopen(binaryImage_in, 11);
Later, subtract binaryImage_in and binaryImage_out.
Image Analyst
il 13 Gen 2016
binaryImage = binaryImage - bwareaopen(binaryImage, 11);
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