JPH0221030B2 - - Google Patents
Info
- Publication number
- JPH0221030B2 JPH0221030B2 JP56046180A JP4618081A JPH0221030B2 JP H0221030 B2 JPH0221030 B2 JP H0221030B2 JP 56046180 A JP56046180 A JP 56046180A JP 4618081 A JP4618081 A JP 4618081A JP H0221030 B2 JPH0221030 B2 JP H0221030B2
- Authority
- JP
- Japan
- Prior art keywords
- black
- contour edge
- black bit
- pattern
- area
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/18—Extraction of features or characteristics of the image
- G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Character Discrimination (AREA)
- Facsimile Heads (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56046180A JPS57161985A (en) | 1981-03-31 | 1981-03-31 | Characteristic pickup circuit for optical character reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56046180A JPS57161985A (en) | 1981-03-31 | 1981-03-31 | Characteristic pickup circuit for optical character reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57161985A JPS57161985A (en) | 1982-10-05 |
JPH0221030B2 true JPH0221030B2 (enrdf_load_stackoverflow) | 1990-05-11 |
Family
ID=12739829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56046180A Granted JPS57161985A (en) | 1981-03-31 | 1981-03-31 | Characteristic pickup circuit for optical character reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57161985A (enrdf_load_stackoverflow) |
-
1981
- 1981-03-31 JP JP56046180A patent/JPS57161985A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS57161985A (en) | 1982-10-05 |