A computer is needed to figure out some effects
Digital Interpolation
Digital video is really a series of numbers that represent the brightness and color information for each pixel on the TV screen. Digital video effects are made possible by manipulating those numbers or by creating new numbers through a mathematical process called interpolation.
Manipulation
Let's assume that you wanted to compress video into a smaller space such as is described on the previous page in the chroma key tracking example. You want to take the same information and push it into a smaller space, but the number of pixels on the screen is fixed and cannot be changed.You have to remove some information to fit the available space. Assume that you have one line of video ...
Get Basic TV Technology, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
