JPS56117478A - Picture display system - Google Patents
Picture display systemInfo
- Publication number
- JPS56117478A JPS56117478A JP2080480A JP2080480A JPS56117478A JP S56117478 A JPS56117478 A JP S56117478A JP 2080480 A JP2080480 A JP 2080480A JP 2080480 A JP2080480 A JP 2080480A JP S56117478 A JPS56117478 A JP S56117478A
- Authority
- JP
- Japan
- Prior art keywords
- block
- picture element
- allotting
- wide range
- threshold level
- 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.)
- Granted
Links
Abstract
PURPOSE: To increase the number of tone wedges, by allotting the number (i) (i= 1∼n) to each position within a block of (n) picture elements and the number (j) (j=1∼m) to each block and then allotting the threshold level sequence k= m(j- 1)+j to the i-th picture element of the block (j) respectively.
CONSTITUTION: A screen is divided into the blocks (c) of the same form and same picture element (i). The number of picture elements is defined 1∼n, and (n) is set to 8 to allot the numerical value of 1∼8 at each position within the block (c). Then (m) units of number (j)(j=1∼4) are allotted regularly to the block (c), and the threshold level sequence value (k) of each picture element is decided through an operation performed based on k=m(i-1)+j. As a result, (k) includes 1∼32 to realize an expression of tone wedges of 33 levels in a wide range. Accordingly the number of tone wedges are increased over a wide range without lowering the equivalent resolution.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2080480A JPS56117478A (en) | 1980-02-20 | 1980-02-20 | Picture display system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2080480A JPS56117478A (en) | 1980-02-20 | 1980-02-20 | Picture display system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56117478A true JPS56117478A (en) | 1981-09-14 |
JPS641992B2 JPS641992B2 (en) | 1989-01-13 |
Family
ID=12037223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2080480A Granted JPS56117478A (en) | 1980-02-20 | 1980-02-20 | Picture display system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56117478A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5894052A (en) * | 1981-11-30 | 1983-06-04 | Toshiba Corp | Processing system of picture signal |
JPS6115467A (en) * | 1984-06-30 | 1986-01-23 | Toshiba Corp | Thermal transfer color printer |
US4736254A (en) * | 1984-11-22 | 1988-04-05 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for generating pseudo-halftone dots by comparing gray scale values of an original with dither threshold values stored in cells of a matrix array divided into imaginary matrices of elemental areas each containing one cell |
US4752822A (en) * | 1983-03-08 | 1988-06-21 | Canon Kabushiki Kaisha | Color halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memory |
JPH01216845A (en) * | 1988-02-25 | 1989-08-30 | Fuji Xerox Co Ltd | Gradation display of image output apparatus |
JPH01216847A (en) * | 1988-02-25 | 1989-08-30 | Fuji Xerox Co Ltd | Gradation display of image output apparatus |
JPH02208069A (en) * | 1989-02-08 | 1990-08-17 | Brother Ind Ltd | Thermal printer |
US11384813B2 (en) | 2019-09-27 | 2022-07-12 | Drägerwerk AG & Co. KGaA | Clamping device and sensor cable |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021256027A1 (en) | 2020-06-18 | 2021-12-23 | 株式会社日立ハイテク | Automatic chemical analysis apparatus and electrical impedance spectrometry device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223207A (en) * | 1975-08-16 | 1977-02-22 | Oki Electric Ind Co Ltd | Method of coding pictures |
JPS54144126A (en) * | 1978-05-01 | 1979-11-10 | Ricoh Co Ltd | Picture signal processing system |
-
1980
- 1980-02-20 JP JP2080480A patent/JPS56117478A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223207A (en) * | 1975-08-16 | 1977-02-22 | Oki Electric Ind Co Ltd | Method of coding pictures |
JPS54144126A (en) * | 1978-05-01 | 1979-11-10 | Ricoh Co Ltd | Picture signal processing system |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5894052A (en) * | 1981-11-30 | 1983-06-04 | Toshiba Corp | Processing system of picture signal |
JPH029388B2 (en) * | 1981-11-30 | 1990-03-01 | Tokyo Shibaura Electric Co | |
US4752822A (en) * | 1983-03-08 | 1988-06-21 | Canon Kabushiki Kaisha | Color halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memory |
JPS6115467A (en) * | 1984-06-30 | 1986-01-23 | Toshiba Corp | Thermal transfer color printer |
US4736254A (en) * | 1984-11-22 | 1988-04-05 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for generating pseudo-halftone dots by comparing gray scale values of an original with dither threshold values stored in cells of a matrix array divided into imaginary matrices of elemental areas each containing one cell |
JPH01216845A (en) * | 1988-02-25 | 1989-08-30 | Fuji Xerox Co Ltd | Gradation display of image output apparatus |
JPH01216847A (en) * | 1988-02-25 | 1989-08-30 | Fuji Xerox Co Ltd | Gradation display of image output apparatus |
JPH02208069A (en) * | 1989-02-08 | 1990-08-17 | Brother Ind Ltd | Thermal printer |
US11384813B2 (en) | 2019-09-27 | 2022-07-12 | Drägerwerk AG & Co. KGaA | Clamping device and sensor cable |
Also Published As
Publication number | Publication date |
---|---|
JPS641992B2 (en) | 1989-01-13 |
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