Chapter 2. Scanning Concepts

2.1 Basic Concept of Scanning.
2.1.1 What Is Scanning ?
Scanning an image is like a copier copying an image, the major difference is that the output of the scanning is an electronic file which can be edited and stored by software.

2.1.2 How does the scanner work?
When scanning, the scanner applies a light source to the image, the light is reflected back from the image into the CCD (Couple-Charged Device) where the varying levels of light are interpreted and digitized, the image is then reconstructed and displayed on your screen.

2.1.3 How do you get the right image from the scanner?
Firstly, you should find the answers about the questions:

2.1.4 What can you do with a scanner?