In neighborhood operation for spatial filtering using square mask of n*n, which of the following approach is/are used to obtain a perfectly filtered result irrespective of the size?

By filtering all the pixels only with the mask section that is fully contained in the image

By ensuring that center of mask must be at a distance ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ñ¬¢ (n ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1)/2 pixels from border of image

In neighborhood operation for spatial filtering using square mask of n

1.	In neighborhood operation for spatial filtering using square mask of n*n, which of the following approach is/are used to obtain a perfectly filtered result irrespective of the size?
A.	By padding the image
B.	By filtering all the pixels only with the mask section that is fully contained in the image
C.	By ensuring that center of mask must be at a distance ‚Äö√Ñ√∂‚àö¬¢‚Äö√Ñ¬¢ (n ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1)/2 pixels from border of image
D.	None of the mentioned
Answer» D. None of the mentioned