HOW PICTURES ARE ENCODED
CHANGING COLOR VALUES
The media learning goals for this chapter are:
To understand how images are digitized by taking advantage of limits in human vision.
To identify different models for color, including RGB, the most common one for computers.
To manipulate color values in pictures, like increasing or decreasing red values.
To convert a color picture to grayscale, using more than one method.
To convert a color picture to its negative representation.
The computer science goals for this chapter are:
To introduce arrays.
To write object methods.
To do iteration with while and for loops.
To introduce comments.
To understand the scope of a variable name.
To introduce breaking a method into smaller methods.