JPS6461888A - Ruled line detecting system - Google Patents
Ruled line detecting systemInfo
- Publication number
- JPS6461888A JPS6461888A JP62217953A JP21795387A JPS6461888A JP S6461888 A JPS6461888 A JP S6461888A JP 62217953 A JP62217953 A JP 62217953A JP 21795387 A JP21795387 A JP 21795387A JP S6461888 A JPS6461888 A JP S6461888A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- contents
- ram
- ruled line
- exclusive
- 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)
- Image Processing (AREA)
Abstract
PURPOSE:To detect the position of a ruled line without fail even when its image data are not horizontal or vertical, by collecting the value of an exclusive OR in a first axis direction, which is a ruled line direction, after executing the exclusive OR between picture elements adjoining to a second axis direction, which is the orthogonal direction to the first axis direction, out of the first and the second axis directions. CONSTITUTION:In a control circuit 17, an X counter 11 and a Y counter 12 are cleared, and a collecting counter 15 is also cleared with a terminal 15a. Thereafter, the contents of a first column RAM 33 and an image RAM 30 are read, and inputted to an exclusive OR gate 14, and the contents of the counter 15 is updated based on the output result. Next, the read contents of the image RAM 10 are written to the RAM 13, the X counter 11 is set at +1, and when the contents reach 2<l>, the contents are written to a projecting RAM 16, and the Y counter 12 is set at +1. Here, when the contents of the (y) counter reach 2<m>, an action is stopped, and the histogram projected on the (y) axis is stored in the RAM 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217953A JP2613060B2 (en) | 1987-09-02 | 1987-09-02 | Ruled line detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217953A JP2613060B2 (en) | 1987-09-02 | 1987-09-02 | Ruled line detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6461888A true JPS6461888A (en) | 1989-03-08 |
JP2613060B2 JP2613060B2 (en) | 1997-05-21 |
Family
ID=16712302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62217953A Expired - Lifetime JP2613060B2 (en) | 1987-09-02 | 1987-09-02 | Ruled line detection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2613060B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS573177A (en) * | 1980-06-09 | 1982-01-08 | Fujitsu Ltd | Detecting circuit for pattern change point |
JPS60189084A (en) * | 1984-03-07 | 1985-09-26 | Fujitsu Ltd | Character area extracting circuit |
-
1987
- 1987-09-02 JP JP62217953A patent/JP2613060B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS573177A (en) * | 1980-06-09 | 1982-01-08 | Fujitsu Ltd | Detecting circuit for pattern change point |
JPS60189084A (en) * | 1984-03-07 | 1985-09-26 | Fujitsu Ltd | Character area extracting circuit |
Also Published As
Publication number | Publication date |
---|---|
JP2613060B2 (en) | 1997-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080227 Year of fee payment: 11 |