1. Process the image
using the smoothing mask
Assume a free boundary condition.
2. Discuss the effect on the gray level value of an individual pixel of repeatedly applying a 3 3 ×
smoothing mask to a digital image. You may assume that the pixel is in the interior of the
image in which case you do not need to be concerned with boundary effects.
3. By using the smoothing mask
show that a high-pass filtered image can be obtained in the spatial domain by
High-Pass = Original – Low-Pass ,
as discussed in class.
4. By using the following two 6 6 × images
median median median ( ) ( ) ( ) f f f f 1 2 1 2 + ≠ + ;
i.e., the median filter is non-linear. Use a mask of the form (defined only over the black dots)