JPS6467074A - Binarization circuit for picture signal - Google Patents
Binarization circuit for picture signalInfo
- Publication number
- JPS6467074A JPS6467074A JP62222129A JP22212987A JPS6467074A JP S6467074 A JPS6467074 A JP S6467074A JP 62222129 A JP62222129 A JP 62222129A JP 22212987 A JP22212987 A JP 22212987A JP S6467074 A JPS6467074 A JP S6467074A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- deciding
- slice level
- area
- binarization
- 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 obtain a high definition picture quality by deciding the effective picture area of a film face from input picture data, forming a density histogram only from the decided effective picture area, and deciding a slice level for a binarization from the density histogram. CONSTITUTION:A size deciding means 103 for deciding the picture size of the picture based on the deciding result of the incoming of the effective picture area by an area deciding means 102 and a binarization means 105 for binarizing the picture data inputted from a picture reading means 101 according to a second slice level set by a slice level setting means 104 are provided. The effective picture area of the film face is decided from the input picture data, the density histogram is formed only from the decided effective picture area and the slice level for the binarization is decided from the density histogram. Thereby, the slice level of the binarization can take an extremely proper value corresponding to an original picture to obtain the high definition picture quality having no base cover, the collapse of a character, for instance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222129A JPS6467074A (en) | 1987-09-07 | 1987-09-07 | Binarization circuit for picture signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62222129A JPS6467074A (en) | 1987-09-07 | 1987-09-07 | Binarization circuit for picture signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467074A true JPS6467074A (en) | 1989-03-13 |
Family
ID=16777622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62222129A Pending JPS6467074A (en) | 1987-09-07 | 1987-09-07 | Binarization circuit for picture signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467074A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6760489B1 (en) | 1998-04-06 | 2004-07-06 | Seiko Epson Corporation | Apparatus and method for image data interpolation and medium on which image data interpolation program is recorded |
-
1987
- 1987-09-07 JP JP62222129A patent/JPS6467074A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6760489B1 (en) | 1998-04-06 | 2004-07-06 | Seiko Epson Corporation | Apparatus and method for image data interpolation and medium on which image data interpolation program is recorded |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3274407D1 (en) | Method and circuit for contrast enhancement | |
KR920003741A (en) | Video signal processing method | |
JPS6467074A (en) | Binarization circuit for picture signal | |
JPS55100549A (en) | Image region signal generating method | |
JPS5730084A (en) | Image data processor | |
EP0396980A3 (en) | Method of processing linework with electronic image processor | |
JPS56159767A (en) | Picture processing method | |
JPS57185770A (en) | Noise rejecting method | |
JPS5583372A (en) | Character read system | |
ATE117495T1 (en) | ELECTRONIC IMAGE PRESENTATION DEVICE. | |
JPS6482288A (en) | Image processing device | |
JPS51114909A (en) | Magnetic recording equipment | |
JPS57189274A (en) | Character cutout device | |
JPS5795759A (en) | Picture signal processing device | |
JPS6432765A (en) | Image binarization device | |
JPS57192171A (en) | Picture processing device | |
JPS6457876A (en) | Picture processor | |
JPS57136284A (en) | Optical character reader | |
JPS5498514A (en) | Facsimile transmitter | |
JPS56114076A (en) | Confirming method of read information | |
JPS57104363A (en) | Frame pattern discriminating method | |
JPS5383515A (en) | Quantization circuit for picture signal | |
JPS5370620A (en) | Wave shape circuit for information signal | |
JPS64530A (en) | Image recorder | |
JPS5688568A (en) | Pattern separation system |