5
What is a digital image?
In
computer vision we usually operate on digital (discrete)
images:
wSample the 2D space on a regular grid
wQuantize each sample (round to nearest integer)
If our samples are D
apart, we can write this as:
f[i
,j] = Quantize{ f(i D,
j D) }
The
image can now be represented as a matrix of integer values
