JPS6426990A - Image estimating device - Google Patents
Image estimating deviceInfo
- Publication number
- JPS6426990A JPS6426990A JP62184654A JP18465487A JPS6426990A JP S6426990 A JPS6426990 A JP S6426990A JP 62184654 A JP62184654 A JP 62184654A JP 18465487 A JP18465487 A JP 18465487A JP S6426990 A JPS6426990 A JP S6426990A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- half tone
- aperture
- scanning aperture
- scanning
- 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 satisfactorily estimate an original half tone image from an original binary image by having a concentration pattern discriminating circuit and an aperture deciding circuit to determine only one scanning aperture from the output of a conditional expression deciding circuit and calculating the half tone level of an observed picture element based on the number of white or black picture elements in the determined scanning aperture. CONSTITUTION:In a first selection circuit 21, binary data to correspond to respective lines are successively selected to nine line memories L1-L9 and stored. In a second select circuit 23, among the nine line memories, the eight line memories necessary for a present image processing are selected and the respective binary data are supplied to a half tone image estimating part 30. Then, among the scanning apertures of plural types, the only one scanning aperture is selected. Data showing the selected scanning aperture is supplied to a selecting circuit 24 and the value of the half tone image, which is determined by a picture element level in the scanning aperture and a gain, is estimated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184654A JPS6426990A (en) | 1987-07-23 | 1987-07-23 | Image estimating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184654A JPS6426990A (en) | 1987-07-23 | 1987-07-23 | Image estimating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6426990A true JPS6426990A (en) | 1989-01-30 |
Family
ID=16157019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184654A Pending JPS6426990A (en) | 1987-07-23 | 1987-07-23 | Image estimating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6426990A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991013513A1 (en) * | 1990-02-26 | 1991-09-05 | Matsushita Electric Industrial Co., Ltd. | Image processor |
-
1987
- 1987-07-23 JP JP62184654A patent/JPS6426990A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991013513A1 (en) * | 1990-02-26 | 1991-09-05 | Matsushita Electric Industrial Co., Ltd. | Image processor |
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