Image Processing Reference
In-Depth Information
So our smoothed picture looks like:
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smooth =
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(b)
(a)
This is equivalent to
convolving
a
template
which has all elements set to
unity
and then
dividing the result by the sum of the template coefficients. A
general
form of an averaging
template operator (which can accept any template size) is
ave(pic,winsize):=
new
←
zero(pic)
half floor
winsize
2
!
for x
∈
half..cols(pic)-half-1
for y
∈
half..rows(pic)-half-1
winsize-1
winsize-1
pic
(winsize winsize)
new
floor
y+iwin-half,x+jwin-half
iwin=0
jwin=0
y,x
new
So let's apply it:
smooth:=ave(eye,3)
With result:
