CA1164086A - Circuit integre pour le traitement des images - Google Patents
Circuit integre pour le traitement des imagesInfo
- Publication number
- CA1164086A CA1164086A CA000348925A CA348925A CA1164086A CA 1164086 A CA1164086 A CA 1164086A CA 000348925 A CA000348925 A CA 000348925A CA 348925 A CA348925 A CA 348925A CA 1164086 A CA1164086 A CA 1164086A
- Authority
- CA
- Canada
- Prior art keywords
- black
- white
- image
- output
- integrated circuit
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/30—Noise filtering
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/36—Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given point; Non-linear local filtering operations, e.g. median filtering
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Image Processing (AREA)
- Image Input (AREA)
- Picture Signal Circuits (AREA)
- Facsimile Image Signal Circuits (AREA)
- Character Input (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3203479A | 1979-04-23 | 1979-04-23 | |
US032,034 | 1979-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1164086A true CA1164086A (fr) | 1984-03-20 |
Family
ID=21862751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000348925A Expired CA1164086A (fr) | 1979-04-23 | 1980-04-01 | Circuit integre pour le traitement des images |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS55149571A (fr) |
CA (1) | CA1164086A (fr) |
DE (1) | DE3015637C2 (fr) |
FR (1) | FR2455322B1 (fr) |
GB (1) | GB2047934B (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4463381A (en) * | 1980-04-16 | 1984-07-31 | Eastman Kodak Company | Image processing apparatus including a partitioned low pass channel |
US4446484A (en) * | 1981-04-16 | 1984-05-01 | Eastman Kodak Company | Image gradient detectors operating in a partitioned low-pass channel |
US4517607A (en) * | 1981-11-09 | 1985-05-14 | Ricoh Company, Ltd. | Method of and apparatus for compensating image in image reproduction system |
EP0083213A3 (fr) * | 1981-12-28 | 1984-08-08 | General Electric Company | Normalisateur digital d'arrière-plan utilisant des techniques d'intégration bi-dimensionnelle |
KR0181129B1 (ko) * | 1995-06-17 | 1999-05-01 | 김광호 | 화상처리장치의 화소 이치화 장치 및 방법 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3394346A (en) * | 1964-04-28 | 1968-07-23 | Rca Corp | Filter circuit |
JPS48102926A (fr) * | 1972-04-07 | 1973-12-24 | ||
US3976973A (en) * | 1974-01-07 | 1976-08-24 | Recognition Equipment Incorporated | Horizontal scan vertical simulation character reading |
US3903543A (en) * | 1974-01-16 | 1975-09-02 | Bell Telephone Labor Inc | Charge transfer device decoder and compander |
US4075605A (en) * | 1974-09-13 | 1978-02-21 | Recognition Equipment Incorporated | Character recognition unit |
US3990044A (en) * | 1975-07-07 | 1976-11-02 | The Singer Company | Symbol recognition enhancing apparatus |
NL7608862A (nl) * | 1976-08-10 | 1978-02-14 | Philips Nv | Stelsel voor de overdracht van gecodeerde berichten met een gereduceerde overdracht- tijd. |
JPS5533348A (en) * | 1978-08-31 | 1980-03-08 | Fuji Xerox Co Ltd | Noise elimination system |
-
1980
- 1980-04-01 CA CA000348925A patent/CA1164086A/fr not_active Expired
- 1980-04-22 GB GB8013208A patent/GB2047934B/en not_active Expired
- 1980-04-22 JP JP5242580A patent/JPS55149571A/ja active Pending
- 1980-04-23 DE DE3015637A patent/DE3015637C2/de not_active Expired
- 1980-04-23 FR FR8009094A patent/FR2455322B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2047934B (en) | 1983-03-16 |
FR2455322B1 (fr) | 1987-07-17 |
GB2047934A (en) | 1980-12-03 |
FR2455322A1 (fr) | 1980-11-21 |
DE3015637A1 (de) | 1980-10-30 |
JPS55149571A (en) | 1980-11-20 |
DE3015637C2 (de) | 1985-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |