I need to implement a one-dimensional M-point averaging filter for a matrix consisting of values (pixels of an image) between 0 and 1, such that each pixel value is replaced by the equal-weighted average of its (M − 1)/2 neighbors to its left, (M − 1)/2 neighbors to its right, and the pixel value itself.
For instance, for M = 3, it would be like:
y[n,m]= 1/3 (x[n,m−1] + x[n,m] + x[n,m+1])
Please help me out with this. Thank you.