filling open gaps in binary image object
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Hello...
i am working with experiment to find out the diameters of generated bubbles.
here is the original image.
here is the processed one.
here is an object from idx list:
this is an object in photo whivh have a same size as the processed one but with zoom in.
my question is:
how to make such an object to appear more circular???
i mean by more circular like this:
Regards,
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Image Analyst
2020-1-7
1 个投票
I've done image processing on lather/suds/bubbles for several projects. First of all you need to get a good image without specular reflections, and this means using crossed polarizers and probably a broad, diffuse overhead light source. Of course it's best if you can press the bubbles between two plates in a monolayer, or against one glass plates if two are not possible.
If you can, try to make the background black and free of clutter and objects.
Then to get rid of interior walls of other bubbles through larger bubbles above you might try a morphological opening.
4 个评论
Image Analyst
2020-1-7
The volume will stay the same but the diameter will change as the shape becomes a cylinder. So you multiply the area by the plate separation to get the volume of the cylinder. Then set that volume equal to (4/3)*pi*r^3 (volume of a sphere) to solve for the equivalent spherical diameter - the diameter it would be as if it were a perfect sphere.
Mohammad Hdaib
2020-1-10
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KALYAN ACHARJYA
2019-11-23
编辑：KALYAN ACHARJYA
2019-11-23
#Approximate
se=strel('diamond',3);
BW2=~imdilate(BW1,se); % 2nd Binary image
BW3=bwareafilt(BW2,1);
BW4=imerode(BW3,se);
Do the smothing & measure approximated distance (dist on multiple direction & do average to find diameter) or regionprops.
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