JPS6486673A - System for converting sub scanning line density - Google Patents
System for converting sub scanning line densityInfo
- Publication number
- JPS6486673A JPS6486673A JP62242630A JP24263087A JPS6486673A JP S6486673 A JPS6486673 A JP S6486673A JP 62242630 A JP62242630 A JP 62242630A JP 24263087 A JP24263087 A JP 24263087A JP S6486673 A JPS6486673 A JP S6486673A
- Authority
- JP
- Japan
- Prior art keywords
- image element
- thinning
- line
- image
- data
- 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
- 241000510097 Megalonaias nervosa Species 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
Landscapes
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To improve picture quality by eliminating a washboard generated at the time of thinning or adding one line of a dither image comprehensively, by designating a position to be thinned or added in a unit of image element in a main scan direction and also at random. CONSTITUTION:The position where image data is thinned out or added is designated in the unit of image element by a designation means 19 at random, and an image element position for which a thinning or adding processing is completed is stored in a second memory means 17 during one period of the thinning or adding processing. With respect to the image element designated by the designation means 19 and the image element stored in the second memory means 17, the data of the image element before one line or behind one line is selected and outputted instead of the data of present output image element. In such a way, it is possible to reproduce a satisfactory dither image without generating deterioration even when the thinning or addition of a line is performed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242630A JPS6486673A (en) | 1987-09-29 | 1987-09-29 | System for converting sub scanning line density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242630A JPS6486673A (en) | 1987-09-29 | 1987-09-29 | System for converting sub scanning line density |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486673A true JPS6486673A (en) | 1989-03-31 |
Family
ID=17091910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62242630A Pending JPS6486673A (en) | 1987-09-29 | 1987-09-29 | System for converting sub scanning line density |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486673A (en) |
-
1987
- 1987-09-29 JP JP62242630A patent/JPS6486673A/en active Pending
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