Apparatus and a method for generating manuscripts to reproduce a color print
US4893177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1986 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Dec 3, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to the present invention, there are provided an apparatus and a method in which a full-color, original manuscript is optically scanned, the optical image is separated into three pirmary colors and the resultant image data is read, and then the image data thus read is outputted to a thermal printer, thereby generating a print for each color undergone the color separation. Namely, the manuscripts for effecting a printing operation with yellow, magenta, cyan, and black are created by use of an ink sheet. In other words, a correction is achieved to set the total of the areal ratios of yellow, magenta, cyan, and black in each pixel of the reproduced image to at most 100% (or the total of the numbers of dots for yellow, magenta, cyan, and black is set to be equal to at most the number of matrix elements), thereby achieving the object described above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.