BSB663Image Processing
Pinar Duygulu
Slides are adapted from
Gonzales & Woods,
Emmanuel Agu
Suleyman Tosun
Average (Mean) of a 3x3 neighborhood
Smoothing an image by averaging
Smoothing an image by averaging
Smoothing as filtering
Smoothing as filtering
What does this filter do?
What does this filter do?
Mean filters: effect of filter size
Weighted smoothing filters
Computation range
What to do at image boundaries?
Difference Filters
Mathematical Properties of convolution
Seperability of Gaussian
Impulse (or Dirac) Function
Non-linear filters
Weighted Median Filter