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Method for Marking Scanned Images

IP.com Disclosure Number: IPCOM000042313D
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Appel, A: AUTHOR [+3]

Abstract

This article proposes the use of special marks or symbols on scanned images to make computer processing faster and easier and a color-sensitive scanning device for facilitating the recognition of added marks. The proposed marks are especially suitable for detection and recognition by image-processing programs. These marks can be put on a picture in ways that are comfortable for draftsmen, that are minor extensions of current graphic techniques, or that are inexpensive additions to current computer-generated pictures. The proposed marks or symbols are here grouped according to function. The use of a particular color for the special marks could facilitate their recognition. The shown device uses a green laser 1 and a red laser 2 as light sources.

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Method for Marking Scanned Images

This article proposes the use of special marks or symbols on scanned images to make computer processing faster and easier and a color-sensitive scanning device for facilitating the recognition of added marks. The proposed marks are especially suitable for detection and recognition by image-processing programs. These marks can be put on a picture in ways that are comfortable for draftsmen, that are minor extensions of current graphic techniques, or that are inexpensive additions to current computer-generated pictures. The proposed marks or symbols are here grouped according to function. The use of a particular color for the special marks could facilitate their recognition. The shown device uses a green laser 1 and a red laser 2 as light sources. Part of their beams are combined by half-silvered mirror 3 and deflected by rotating mirror 4. Red and green detectors 7, 8 detect the light reflected by paper 9 and filtered by red and green filters 5, 6. Using, for example, the red color for the special marks, red detector 7 senses an increase in light when such a mark is scanned, while green detector 8 senses a decrease. When the difference between the light sensed by the two detectors exceeds a given value, it can be assumed that a red marking has been detected.

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