HyScreen combines the benefits of AM (Amplitude Modulated) screening in the midtones and FM screening in the highlights and shadows.  Shadows and Highlights
| New "XM" screening where FM dots are distributed in a dispersed pattern in a subset of the positions where AM dots will later appear.  Gradient (Scanned Image)
| Higher screen frequencies can be used than otherwise possible. Without the FM highlights there would be a sudden transition when the smallest stable dot appears in each halftone cell, and this transition become a bigger tone jump with higher frequency. With FM, the fraction of those cells are finely controlled in the extreme highlights, allowing for a smooth transition. |
 Lights and Shadows of Skin Tones
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 Highlight Details
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Hybrid Screening is a Cross Modulated "XM" screening technology that uses the industry proven Agfa Balanced Screening "ABS" AM halftoning in the midtones and smoothly transitions to a modulated FM dispersion based on the "AM" angle and the minimum dot size in the highlights and shadows. * Fixed size dots are distributed in a dispersed pattern in a subset of the positions where AM dots would normally appear. * Higher screen frequencies can be used than otherwise possible. Without the fixed size highlights there would be a sudden transition when the smallest stable dot appears in each halftone cell, and this transition becomes a bigger tone jump with higher frequency. With fixed dot sizes, the density of those cells are finely controlled in the extreme highlights, allowing for a smooth transition.
Hybrid Screening lets you print highlights which truly fade to zero, and have precise control over subtle pastels and shadings previously nearly impossible to achieve in print production.
Hybrid Screening reduces the need for bump curves and cutback curves typically used to address the deformation problem in highlights followed by the dot gain in midtones. With HyScreen it is possible to improve print quality on full tone printing without special curves, thus saving time and money! |