What We've Learned So Far
To sum up:
A pixel is the smallest unit of a digital image.
A pixel can be any color and brightness.
A digital image file contains all the pixels that comprise the image.
A digital image file also contains data on how the pixels are arranged.
To these facts we can add a few that most people already know:
All digital information is stored in the form of numbers.
Numbers can be manipulated through mathematics.
Computers are really good at math!
Now the fun begins...
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