JPS55146571A - Optical character reader - Google Patents
Optical character readerInfo
- Publication number
- JPS55146571A JPS55146571A JP5422479A JP5422479A JPS55146571A JP S55146571 A JPS55146571 A JP S55146571A JP 5422479 A JP5422479 A JP 5422479A JP 5422479 A JP5422479 A JP 5422479A JP S55146571 A JPS55146571 A JP S55146571A
- Authority
- JP
- Japan
- Prior art keywords
- drop
- spectrum
- area
- reflected ray
- out color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Character Input (AREA)
Abstract
PURPOSE: To store a drop-out color and a reflected ray spectrum of white area of business form, to compare a reflected ray spectrum obtained by scanning with a spectrum which has been stored, and to drop it from a picture signal in case they are similar.
CONSTITUTION: A business form 301 is fed to the upper part shown in Fig. by an optical character reader, and is scanned by a scanning line 306. In an area 302 decided beforehand of the heading of a business form, a drop-out color is printed, and also there is a white area 303. In addition to the foregoing, there are character areas shown by entry frames 304, print frames 305, etc. A reflected ray from the drop-out color area 302 and the white area 303, which have been obtained by the first scanning is resolved by a three primary color filter in order to store the spectrum. A reflected ray spectrum which has scanned the character area is compared with a spectrum which has been stored, and in case they are similar, its reading signal is dropped from a video signal. Thus the limit for using a drop-out color can be loosened remarkably.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5422479A JPS55146571A (en) | 1979-05-04 | 1979-05-04 | Optical character reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5422479A JPS55146571A (en) | 1979-05-04 | 1979-05-04 | Optical character reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55146571A true JPS55146571A (en) | 1980-11-14 |
| JPS6213713B2 JPS6213713B2 (en) | 1987-03-28 |
Family
ID=12964558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5422479A Granted JPS55146571A (en) | 1979-05-04 | 1979-05-04 | Optical character reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55146571A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119380A (en) * | 1981-01-17 | 1982-07-24 | Ricoh Co Ltd | Detector for copying area in copying machine |
| JPS5868182A (en) * | 1981-10-20 | 1983-04-22 | Nec Corp | Optical character reader |
| EP0375090A2 (en) * | 1988-12-21 | 1990-06-27 | Recognition International Inc. | Document processing system |
| DE19845996A1 (en) * | 1998-10-06 | 2000-04-20 | Computer Ges Konstanz | Image data processing method for automatic document processing uses initial scanning of master image to provide background color information used for identifying background image elements |
-
1979
- 1979-05-04 JP JP5422479A patent/JPS55146571A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119380A (en) * | 1981-01-17 | 1982-07-24 | Ricoh Co Ltd | Detector for copying area in copying machine |
| JPS5868182A (en) * | 1981-10-20 | 1983-04-22 | Nec Corp | Optical character reader |
| EP0375090A2 (en) * | 1988-12-21 | 1990-06-27 | Recognition International Inc. | Document processing system |
| DE19845996A1 (en) * | 1998-10-06 | 2000-04-20 | Computer Ges Konstanz | Image data processing method for automatic document processing uses initial scanning of master image to provide background color information used for identifying background image elements |
| DE19845996C2 (en) * | 1998-10-06 | 2002-03-07 | Cgk Comp Ges Konstanz Mbh | Process for processing image data by evaluating a sample form |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213713B2 (en) | 1987-03-28 |
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