Line rasterization technique for a non-gray scale anti-aliasing

Details Line rasterization technique for a non-gray scale anti-aliasing Line rasterization technique for a non-gray scale anti-aliasing

1990-11-14

1992-06-16

Reinhart, Mark J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346108, H04N 121

Patent

active

051228840

ABSTRACT:
A line rasterization technique for a non-gray scale anti-aliasing method smoothes the edges of a single pixel width line image to be printed by a binary imaging printer. The line image is generated by rasterizing an ideal line image as a plurality of raster lines to form a pixel representation of the line image to be communicated to the binary imaging printer. For each vertical transition point created by the ideal line image crossing two adjacent raster lines, the present invention smooths the line image by selectively modifying the on and off states of one or more pixels in an adjacent raster line on either side of the vertical transition point. The pixel representation of the line image is then communicated to the printer such that the printer may print the smoothed line image.

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