Patent · US Expired

Image processing device for modifying tone characteristics of image data

US5917959A · kind A · utility

7Cited by
13References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 8, 1997
Grant dateJun 29, 1999
Priority date
Expiry dateSep 8, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N9/67
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

The image processing device converts input image data into converted data. A two way buffer in the image processing device stores reference data generated by a converted data generator under the direction of a controller. The two way buffer is then used to generate converted data in response to received image data. Also, depending upon the input device connected to the image processing device, a selector selects one of a plurality of processing characteristics. The selected processing characteristics are used to vary and set a conversion function for converting the image data to produce the converted data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.