Can someone help me to remove small region area with regionprops?

I wish to remove the small region area with regionprops but I quiet new to matlab and image processing. The pixel intensity is 0 and 1, should i change to 0 and 255? Can anyone help me?

Answer 1

[AndresVar]

try bwareaopen: Remove small objects from binary image - MATLAB bwareaopen (mathworks.com)

There is an example in the documentation.

If you scroll down to the end it shows how it uses regionprops internally.

I suppose binary image [0 1] works best.

[Quah Yi Hang]

This method is very helpful, thanks a lot. I will try to apply this method.

Answer 2

[Walter Roberson]

bwareafilt can be used to select areas by size

[Quah Yi Hang]

This suggestion is very useful, thanks a lot. I will try it.