Vertically scaling image signals using selected weight factors

Details Vertically scaling image signals using selected weight factors Vertically scaling image signals using selected weight factors

1994-06-03

1997-12-02

Saras, Steven

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345138, 382298, 395139, G09G 500

Patent

active

056941480

ABSTRACT:
A current row and a next row of an image are selected in accordance with digital differential accumulator processing. A current-row weight factor and a next-row weight factor are selected in accordance with the digital differential accumulator processing. Weighted current-row image signals are generated by multiplying a plurality of image signals of the current row by the current-row weight factor and weighted next-row image signals are generated by multiplying a plurality of image signals of the next row by the next-row weight factor. Vertically scaled image signals are generated by adding the weighted current-row image signals and the weighted next-row image signals.

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