Antialiasing with grey masking techniques

Details Antialiasing with grey masking techniques Antialiasing with grey masking techniques

1994-12-12

1998-04-07

Coles, Sr., Edward

Image analysis

Image transformation or preprocessing

Combining image portions

382266, 382268, 358448, 358455, 358461, 358464, 358534, G06K 936, H04N 140, H04N 136

Patent

active

057374554

ABSTRACT:
A method of combining antialiased edges for printing or display at a grey level reproduction device, wherein pixels have shade values determined as a function of their neighbor's shade values and mask values. Shade values are determined by processing each pixel in terms of subpixels forming the pixel. Each of a plurality of subpixels are assigned mask and shade values as a function of their position in the pixel and with respect to the nearest neighbors. The resulting values for each subpixel are averaged to determine a final output value for the pixel.

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A. Schilling, "A New Simple and Efficient Antialiasing With Subpixel Masks", Computer Graphics, vol. 25, No. 4, Jul. 1991, pp. 133-141.
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