Method and apparatus for negative-to-positive video conversion

Details Method and apparatus for negative-to-positive video conversion Method and apparatus for negative-to-positive video conversion

1993-04-05

1994-02-15

Groody, James J.

Television

Special applications

Film, disc or card scanning

352 1, 348373, 348 64, 348692, H04N 911

Patent

active

052871754

ABSTRACT:
A system is disclosed for electronically processing negative composite video signals, wherein the negative composite video signals correspond to a negative image as produced by the projection of negative photographic film. The negative composite video signals are converted to positive composite video signals. The entire portion of the negative composite video signal between adjacent horizontal blanking portions is electronically inverted. The horizontal blanking portions of the negative composite video, which include the color burst signal, are not inverted. The composite signal that results includes the blanking portions, having the color burst signal, in their original, unaltered state. The image portion of the resulting composite signal, i.e., the portions of the resulting composite signal between the horizontal blanking portions, is inverted, and the resulting composite video signal is thus converted from negative to positive state.

REFERENCES:
patent: 3751580 (1973-08-01), Metzger
patent: 4866513 (1989-09-01), Takahashi
patent: 5160948 (1992-11-01), Bae

Affiliated with

Also associated with

Rating

Method and apparatus for negative-to-positive video conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for negative-to-positive video conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for negative-to-positive video conversion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1211225