Title:
VIDEO CORRECTING DEVICE
Document Type and Number:
Japanese Patent JPS58181358
Kind Code:
A
Abstract:
In a video retouching system having an image source (40), a refresh store (42) fed from the image source, and a monitor (46) supplied from the refresh store, an image modifier (44) is interposed between the refresh store and the monitor and is controlled by a modifying store having a multi-bit location for each picture element. The stored multi-bit values may be used, for example to modify the display to obtain a vignetting effect, or to lighten or darken picture elements or modify chrominance. Preferably a mask store (48) having one bit per pixel defines those pixels which may be modified and those which must not be modified. In one form, the store with a multi-bit location for each picture element controls the merging of two images.
Inventors:
RINZEI UIRIAMU MAKUDONARUDO
Application Number:
JP3840983A
Publication Date:
October 24, 1983
Filing Date:
March 10, 1983
Export Citation:
Assignee:
CROSFIELD ELECTRONICS LTD
International Classes:
G03F3/08; G09G5/00; H04N1/00; H04N1/387; H04N5/93; H04N1/40; H04N1/46; H04N1/48; H04N1/60; H04N1/62; (IPC1-7): H04N1/00; H04N1/46; H04N5/93
Domestic Patent References:
| JPS5442157A | 1979-04-03 | |||
| JPS57196659A | 1982-12-02 | |||
| JPS5687044A | 1981-07-15 | |||
| JPS5522708A | 1980-02-18 |
Attorney, Agent or Firm:
Aoki Akira