JPS6486674A - Image input device - Google Patents
Image input deviceInfo
- Publication number
- JPS6486674A JPS6486674A JP62243520A JP24352087A JPS6486674A JP S6486674 A JPS6486674 A JP S6486674A JP 62243520 A JP62243520 A JP 62243520A JP 24352087 A JP24352087 A JP 24352087A JP S6486674 A JPS6486674 A JP S6486674A
- Authority
- JP
- Japan
- Prior art keywords
- image
- threshold value
- gradation
- signal
- processing
- 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.)
- Pending
Links
Abstract
PURPOSE:To process an image in which a character and a photography are mixed appropriately and in a real time by separating an image signal to four gradation, and sending a selection signal to a selector by judging two gradation, an upper and a lower gradation, as binary image areas, and two intermediate gradation as multilevel image areas. CONSTITUTION:An image on an original is read by a CCD1, and is amplified by an amplifier 2, and is converted to a digital image signal by an A/D converter 3. Meanwhile, a threshold value for a slice processing and the threshold value for a dither processing are inputted to the selector 4, and either the threshold value for the splice processing or the threshold value for the dither processing is selected by the selection signal from an image area discrimination circuit 6. The threshold value for the slice processing or the threshold value for the dither processing selected by the selector 4 is sent to a comparator 5, and is compared with the digital image signal that is the output signal of the A/D converter 3, and is outputted as a binary image signal. In such a way, it is possible to process the image in which the binary image such as the character, etc., and the multilevel image such as the photography, etc., are mixed appropriately and in a real time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243520A JPS6486674A (en) | 1987-09-28 | 1987-09-28 | Image input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243520A JPS6486674A (en) | 1987-09-28 | 1987-09-28 | Image input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486674A true JPS6486674A (en) | 1989-03-31 |
Family
ID=17105126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243520A Pending JPS6486674A (en) | 1987-09-28 | 1987-09-28 | Image input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486674A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5144720A (en) * | 1991-01-16 | 1992-09-08 | Kato Hatsujo Kaisha, Ltd. | Releasable double-hinge device for an automobile console box |
US5210906A (en) * | 1990-12-14 | 1993-05-18 | Kato Hatsujo Kaisha, Ltd. | Releasable double-hinge device for an automobile console box |
-
1987
- 1987-09-28 JP JP62243520A patent/JPS6486674A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5210906A (en) * | 1990-12-14 | 1993-05-18 | Kato Hatsujo Kaisha, Ltd. | Releasable double-hinge device for an automobile console box |
US5144720A (en) * | 1991-01-16 | 1992-09-08 | Kato Hatsujo Kaisha, Ltd. | Releasable double-hinge device for an automobile console box |
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