Method for scaling an image

Details Method for scaling an image Method for scaling an image

1997-07-31

1999-09-14

Shalwala, Bipin H.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345439, 345508, G09G 500

Patent

active

059529946

ABSTRACT:
A method for scaling a portion of an image shown on the display of a PDA is disclosed. After scaling, the display of the PDA switches to show the scaled view of the portion of the image. This method essentially involves the scaling of a first set of display information which forms the portion of the image, into a second set of display information which makes up the scaled view. During the scaling process, a series of look-up tables containing display conversion information are generated. An address-indexing technique is then used with the look-up tables to achieve an efficient and fast scaling process. The method also employs a smoothing technique to provide a more pleasing scaled view.

REFERENCES:
patent: 5301265 (1994-04-01), Itoh
patent: 5784047 (1998-07-01), Cahill, III et al.
patent: 5793379 (1998-08-01), Lapidous
patent: 5838297 (1998-11-01), Zhao
patent: 5886682 (1999-03-01), Biggs

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