Scanning text and images using scanner
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Scanners are input devices that optically scan images, text, and objects and convert them into digital formats. There are several types of scanners including flatbed scanners, slide scanners, handheld scanners, and drum scanners. The first image ever scanned was a photograph of Russell Kirsch's son in 1957 using a drum scanner. Scanners work by turning on the device, placing the item to be scanned on or in the scanner, and using software to scan and save the resulting digital file.
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.
- 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/