For years imaging scientists have known how to enhance the edges of text and artwork objects, reducing the artifact of "aliasing",  also referred to as "the jaggies", along the edges of text and graphic objects.  Anti-aliasing of a rendered, continuous tone image fills in the in-between jumps at the edges with pixels having in-between tone values. This gives text and artwork the appearance of smoothness usually obtained only when printing at higher resolutions.


The problems

  1. Anti-aliasing works on continuous tone, not screened data.  One can not simply enable a rip's anti-aliasing and then send the data to be screened and printed.  Serious artifacts result.  Traditional anti-aliasing techniques are  therefore inappropriate for bilevel printing, as well as having artifacts with multilevel printing.     See it here -->  
  2. The traditional anti-aliasing technique is an inherently slow process.  When implemented together with  multilevel screening, which also increased calculations, the combination may be unacceptably slow.

The solution

ScaleAbilities has developed a form of text and artwork enhancement, similar to traditional anti-aliasing, designed specifically for graylevel printing, and which works together with multilevel screening and is optimized for hardware-based acceleration.   See it here -->