If you’ve ever replaced the ink or toner in a color printer, you know the three colors Cyan, Yellow, and Magenta are used in various combinations to print any color. On your computer screen it’s mixtures of Red, Green, and Blue.
Each tiny dot in a picture, called a pixel, has three numbers: How much red, how much green, and how much blue get mixed together to form the color of that specific pixel. Typically the amount of each color is stored as a number ranging from 0 to 255.
On a computer, a picture is really just a whole lot of numbers representing the reds, greens, and blues of every dot in the picture.
Then, along came digital video… Read the rest of this entry »