How can I measure how many pixels a single irregular object has?

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Crystal
Crystal el 13 de Ag. de 2014
Editada: Ahmet Cecen el 13 de Ag. de 2014
I have an image with many irregular objects. How can I measure how many pixels each irregular object has? The image is shown as the follows. Thanks a lot!

Respuestas (2)

Ben11
Ben11 el 13 de Ag. de 2014
If you have the Image Processing Toolbox it looks like this link might answer your question. It's an example from The Mathworks showing how to treshold an image and identify objects in it (steps 5 and further) as well as how to compute their area, which is what you want.

Ahmet Cecen
Ahmet Cecen el 13 de Ag. de 2014
Editada: Ahmet Cecen el 13 de Ag. de 2014
I assume the sea of blue there are all 0s, so I would do image(image~=0)=1, and you will have a black and white image of only 1s and 0s.
You can use bwconncomp after the above thresholding. It will give a list of every individual object and a list of each objects pixels.

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