Programmable image-transformation system

Details Programmable image-transformation system Programmable image-transformation system

1986-02-07

1987-08-18

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, H04N 514

Patent

active

046880950

ABSTRACT:
Data to be stored in a frame buffer (12) that stores data representing an image are drawn from a look-up table (34). The look-up table (34) contains conversion data and is addressed by the output of a multiplexer circuit (24). The multiplexer circuit (24) receives its inputs from the data output port of the frame buffer (12), from a register (42), and from an analog-to-digital converter (22) that converts the output of a video camera (20) to digital signals. In response to different values on selection-signal lines (36), the multiplexer circuit (24) assembles the address that it applies to the look-up table (34) from different combinations of the outputs of the frame buffer (12), the register (42), and the analog-to-digital-converter (22). By changing the selection signals applied to the multiplexer circuit (24), it is possible to employ the same image-processing system (10) to perform different functions, such as gamma correction, contrast variation, iamge-from-image subtraction, and multiple-image averaging.

REFERENCES:
patent: 3800078 (1974-03-01), Cochran et al.
patent: 4148070 (1979-04-01), Taylor
patent: 4212072 (1980-07-01), Huelsman et al.
patent: 4285004 (1981-08-01), Morrison et al.
patent: 4365304 (1982-12-01), Ruhman et al.
patent: 4375671 (1983-03-01), Engle
patent: 4394688 (1983-07-01), Iida et al.
patent: 4396938 (1983-08-01), Dischert
patent: 4435792 (1984-03-01), Bechtolsheim
patent: 4445138 (1984-04-01), Zwirn et al.
patent: 4450482 (1984-05-01), Ackermann
"A Digital Telecine Processing Channel" by Olifant et al, SMPTE Journal, vol. 88, No. 7, 7/79.

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