Scanning Text and Images using Scanner

1. Scanning Text & Images
using Scanner
Presented By:
Mukesh Mirrey
BCA III
Guided By:
Nagendra Dewangan Sir

2. Contents
• Introduction
• Types of Scanner
• Scanning Image
• Scanning Text

3. Introduction
• Scanner is an input device which scans the object into
the computer.
• A device that optically scans images, printed text,
handwriting, or an object converts it to a digital
image.

4. Types of Scanner
• Flatbed scanner
• Slide scanner
• Handheld scanner
• Drum scanner

5. Flatbed scanner
• A scanner with a glass scanning surface
on which objects are placed; similar to a
photocopier.

6. Slide scanner
• Illuminates the slide and projects the
image onto a digital scanning element
which converts the image to a digital
photographic format like .jpeg or .gif.

7. Handheld scanner
• A manual device that is dragged across
the surface of the image to be scanned.

8. Drum Scanner
Drum scanner used to capture the highest resolution from an image.
Photographs and transparencies are taped, clamped or fitted into a
clear cylinder (drum) that is spun at speeds exceeding 1,000 RPM
during the scanning operation. A light source that focuses on one
pixel is beamed onto the drum and moves down the drum a line at a
time.

9. First Scanned Image
The first image scanner
developed for use with a
computer was a drum scanner.
It was built in 1957 at the US
National Bureau of Standards
by a team led by Russell A.
Kirsch. The first image ever
scanned on this machine was
a 5 cm square photograph of
Kirsch's then-three-month-old
son, Walden. The black and
white image had a resolution of
176 pixel on a side.

10. How Scanner Works

11. Turn on Scanner
Scanning Image
Connect USB
Place image for scanning

12. Scanning Image
Open Windows
Fax and Scan

13. Scanning Image

14. Scanning Image

15. Scanning Image

16. Scanning Image

17. Scanning Text

18. Scanning Text

19. Scanning Text

20. Scanning Text

21. Scanning Text

22. Scanning Text

23. Scanning Text

24. Scanning Text

25. Scanning Text

26. Scanning Text

27. Scanning Text

28. References
• http://www.slideshare.net/
• http://www.wikihow.com/Scan-Photos
• http://www.wikihow.com/Scan-Documents
• http://computer.howstuffworks.com/printers-scanners-channel.htm
• http://www.wikihow.com/Turn-a-Scanned-Document-Into-Microsoft-Word-
Document
• http://www.uillinois.edu/cio/services/rims/guidance_and_best_practice/scan
ning_records_-_overview/