Scanning Concepts
What Is Scanning?
Scanning an image is like a copier copying an image with the major difference
that the output of the scanning is an electronic file which can be edited and stored by
software.
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.As a result,the image is reconstructed and displayed on your
screen.
How do you get the right image from the scanner?
To get the right image, you should have the answers to the following questions:
- What is the scanned image for? For a document? For printing out? To be viewed on the
screen or translated into text by OCR?
- Which image editing software will be used and which file formats it accepts?
- What is the original image type and what is the final image type?
What can I do with my scanner?
- Optical Character Recognition (OCR) - You can translate text-based image like fax into
text to be edited by word processing software.
- Enrich your presentation and document by adding images.
- Convert hard copy images or documents into a fax format for faxing.
- Add scanned images to your e-mail to enrich your topics.