BILEVEL DISPLAY OF CONTINUOUS- TONE IMAGES USING PEANO CURVES
Date
1981-12-01
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Abstract
A new method is presented for showing grey-scale images on
black-and-white displays. An incremental representation is used to determine points
along a line with controlled cumulative error. Undesirable interactions
between adjacent lines are avoided by scanning along a recursive space-filling
curve. Peano curves are chosen because they limit the cumulative error
in binary subdivisions of the image. The method is an improvement over
earlier ones because it can easily compensate for dot-overlap in
ink-and-paper displays. It also appears to be suitable for colour
halftones.
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Computer Science