JPS5757081A - Conversion method for picture element density - Google Patents
Conversion method for picture element densityInfo
- Publication number
- JPS5757081A JPS5757081A JP55132611A JP13261180A JPS5757081A JP S5757081 A JPS5757081 A JP S5757081A JP 55132611 A JP55132611 A JP 55132611A JP 13261180 A JP13261180 A JP 13261180A JP S5757081 A JPS5757081 A JP S5757081A
- Authority
- JP
- Japan
- Prior art keywords
- density
- picture
- picture elements
- picture element
- information
- 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
- 238000006243 chemical reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000002093 peripheral effect Effects 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/409—Edge or detail enhancement; Noise or error suppression
- H04N1/4092—Edge or detail enhancement
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
Abstract
PURPOSE:To reduce the ruggedness of a picture surface to improve reproducibility of narrow lines, by converting a picture element density by the boundary direction of the density and the density. CONSTITUTION:Three-line components of input picture element information IN are transmitted to a 3X3 picture element constituting part 2 through shift registers 1 and 11. Density information of the region of 3X3 picture elements is transmitted from the picture element constituting part 2 to a boundary direction operating part 3, and density information of eight peripheral picture lelments is transmitted to a peripheral density descriminating part 4. A boundary direction D is operated by the operating part 3, and it is discriminated by the discriminating part 4 whether picture elements of density 1 and density 2 exist near eight peripheral picture elements or not. In a functional table part 5, output picture elements O1- O4 are determined on a basis of the direction D, the density of a noticed picture elements S5, presence or absence of picture elements of density 1, and presence or absence of picture elements of density 2 and are outputted in parallel. A parallel- serial converter 6 converts this output to a serial picture element information and outputs it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55132611A JPS5757081A (en) | 1980-09-24 | 1980-09-24 | Conversion method for picture element density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55132611A JPS5757081A (en) | 1980-09-24 | 1980-09-24 | Conversion method for picture element density |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5757081A true JPS5757081A (en) | 1982-04-06 |
Family
ID=15085370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55132611A Pending JPS5757081A (en) | 1980-09-24 | 1980-09-24 | Conversion method for picture element density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5757081A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0234590A2 (en) * | 1986-02-28 | 1987-09-02 | Dainippon Screen Mfg. Co., Ltd. | Method of and apparatus for generating high-resolution binary image data with respect to linear edges |
US4710823A (en) * | 1984-06-08 | 1987-12-01 | Dainippon Screen Mfg. Co., Ltd. | Density conversion in image reproduction |
JP2008123747A (en) * | 2006-11-09 | 2008-05-29 | Marumo Denki Kk | Socket for halogen lamp and lighting fixture using it |
US20090059255A1 (en) * | 2007-09-05 | 2009-03-05 | Toshio Ohide | Image processing apparatus, image forming apparatus, and image processing method |
-
1980
- 1980-09-24 JP JP55132611A patent/JPS5757081A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4710823A (en) * | 1984-06-08 | 1987-12-01 | Dainippon Screen Mfg. Co., Ltd. | Density conversion in image reproduction |
EP0234590A2 (en) * | 1986-02-28 | 1987-09-02 | Dainippon Screen Mfg. Co., Ltd. | Method of and apparatus for generating high-resolution binary image data with respect to linear edges |
JP2008123747A (en) * | 2006-11-09 | 2008-05-29 | Marumo Denki Kk | Socket for halogen lamp and lighting fixture using it |
US20090059255A1 (en) * | 2007-09-05 | 2009-03-05 | Toshio Ohide | Image processing apparatus, image forming apparatus, and image processing method |
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