JPS5556761A - Picture process system - Google Patents
Picture process systemInfo
- Publication number
- JPS5556761A JPS5556761A JP12987778A JP12987778A JPS5556761A JP S5556761 A JPS5556761 A JP S5556761A JP 12987778 A JP12987778 A JP 12987778A JP 12987778 A JP12987778 A JP 12987778A JP S5556761 A JPS5556761 A JP S5556761A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- threshold level
- level
- signals
- output
- 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
Landscapes
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To obtain a high-contrast image by setting the threshold level based on the density level featuring the highest emerging frequency among the density levels with every picture element and thus deleting the signals lower than the threshold level as the noise.
CONSTITUTION: The picture signals obtained by scanning with every picture element are converted into the digital signals via A/D converter 1, and density level M of the highest frequency within the picture element region around notice point X is detected and memorized by adder 2 and memory 3 and according to the output signal of the digital signal. Then level M is compared for decision with the prescribed value via comparator 4 and by each output of the density level read out through the adder, and an operation is carried out at operator 5 according to the comparsion output in order to calculate the optimum threshold level. After this, the signal components lower than the threshold level are eliminated among the output signals of converter 1 to obtain the picture signals higher than the threshold level. With the picture signal, the plotter or the like is driven. In such way, the picture free from the noise can be reproduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12987778A JPS5556761A (en) | 1978-10-21 | 1978-10-21 | Picture process system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12987778A JPS5556761A (en) | 1978-10-21 | 1978-10-21 | Picture process system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5556761A true JPS5556761A (en) | 1980-04-25 |
Family
ID=15020516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12987778A Pending JPS5556761A (en) | 1978-10-21 | 1978-10-21 | Picture process system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5556761A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62111569A (en) * | 1985-11-09 | 1987-05-22 | Fuji Photo Film Co Ltd | Automatic setting method for output signal processing condition in image input/output system |
JPH01160174A (en) * | 1987-12-17 | 1989-06-23 | Fuji Photo Film Co Ltd | Picture signal processing method |
JPH01170272A (en) * | 1987-12-25 | 1989-07-05 | Fuji Photo Film Co Ltd | Picture signal processing method |
JPH01170273A (en) * | 1987-12-25 | 1989-07-05 | Fuji Photo Film Co Ltd | Picture signal processing method |
WO2000052922A1 (en) * | 1999-03-02 | 2000-09-08 | Seiko Epson Corporation | Image data background judging device, image data background judging method, and medium on which image data background judging control program is recorded |
-
1978
- 1978-10-21 JP JP12987778A patent/JPS5556761A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62111569A (en) * | 1985-11-09 | 1987-05-22 | Fuji Photo Film Co Ltd | Automatic setting method for output signal processing condition in image input/output system |
JPH01160174A (en) * | 1987-12-17 | 1989-06-23 | Fuji Photo Film Co Ltd | Picture signal processing method |
JPH01170272A (en) * | 1987-12-25 | 1989-07-05 | Fuji Photo Film Co Ltd | Picture signal processing method |
JPH01170273A (en) * | 1987-12-25 | 1989-07-05 | Fuji Photo Film Co Ltd | Picture signal processing method |
WO2000052922A1 (en) * | 1999-03-02 | 2000-09-08 | Seiko Epson Corporation | Image data background judging device, image data background judging method, and medium on which image data background judging control program is recorded |
US7099041B1 (en) | 1999-03-02 | 2006-08-29 | Seiko Epson Corporation | Image data background determining apparatus image data background determining method, and medium recording thereon image data background determination control program |
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