Image density processor
US4972500A · kind A · utility
15Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40075
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is an image processing apparatus which can further digitally control the density of the image signal read out from the image file in which the dither-processed image signal was stored. This apparatus comprises an input device to input the dither-processed image signal, table memories which output the density correction data using the image signal of a plurality of bits inputted by the input device as an input address, and a visible output device to output the outputs of the table memories as visible outputs, wherein the input device reads out the dither-processed image signal from the image file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.