Why are blobs from background subtraction implemented using OpenCV keep on changing even for still objects?

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Shafagat Mahmudova

Dear Walid Aly ,

Look the link. May be useful.

http://docs.opencv.org/3.1.0/db/d5c/tutorial_py_bg_subtraction.html

Regards, Shafagat

Mohammed Abdel-Megeed Mohammed Salem

Because of the continuous change in illumination.

Walid Ahmed

@Mohammed Abdel-Megeed Mohammed Salem

Can you suggest any way to decrease this effect?

Omar S. Al-Kadi

You can try homomorphic filtering for correction of non-uniform illumination in the image. If you are using Matlab, a good example can be found at:

http://blogs.mathworks.com/steve/2013/06/25/homomorphic-filtering-part-1/