What’s a
digital
image?
We usually operate on
digital
(discrete)
images:
•
Sample
the space on a regular grid
•
Quantize
each sample (round to nearest integer)
If our samples are
d
apart, we can write this as:
scanalyze demo
Digital images (or just “images”) are typically stored in a matrix
•
Different coordinate systems (x,y) vs. (i=row,j=column)
•
Helpful to use macros to convert when coding things up