System and method for graphics scaling and localized color enhan

Details System and method for graphics scaling and localized color enhan System and method for graphics scaling and localized color enhan

1995-01-19

1997-03-04

Jankus, Almis R.

Image analysis

Histogram processing

For setting a threshold

382299, 358451, G06T 300

Patent

active

056088531

ABSTRACT:
A system and method for scaling graphic images determines a local background color on a pixel by pixel basis. The local background color for a particular pixel is determined based on scaled or unsealed pixels in the local area around the particular pixel. The local background color for each pixel can be used to influence the color selection for that pixel. The system can be to increase or reduce resolution. The system can operate with devices that scan horizontally or vertically, and from the left or right.

REFERENCES:
patent: 5231519 (1993-07-01), Koike
Duttweiler (ed.), Coded Representation of Picture and Audio Information--Progressive Bi-Level Image Compression, Draft CCITT Recommendation T.82 (ISO/IEC CD 11544), 1991, pp. 4-81.

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