- 66 -
Mercury II User Manual
graphic software application.
Halftone (Raster Page)
[DEFAULT SETTING: Dithering]
This option controls the way a raster-engraved image is processed. The “digital image to
engraved output” process can be processed via two methods: Dithering or Error Diffusion.
Each offer additional output options yielding different output effects, style, and quality.
y
Dithering:
Interprets and outputs the raster engraving via the dithering method.
This mode will allow you to select the Pattern Type and Dithering Matrix, and
Enhanced Dithering.
o
Pattern Type: Dot, Bayer, Corner, 45 Degree
[DEFAULT SETTING: Dot]
Each pattern type uses a different shape and arrangement of dots to compose
the shading effect of a raster image.
The following diagram is an example of the raster effects when using the
different pattern types.
Dot Bayer Corner
o
Dithering Matrix:
Variable depending on the Pattern Type selected.
[DEFAULT SETTING: 8x8]
This controls the resolution (dot size) and the number of dots the image is
broken down into for the dithering process. As an example, selecting 2 x 2 will
shade with a 5-grade halftone, where as an 8 x 8 Dithering Matrix will dither
with a 65-grade halftone.
The following diagram is an example of the raster effects when using the
different dithering matrices.
2 x 2 Dithering
8 x 8 Dithering
2 x 2
8 x 8
Содержание Mercury II
Страница 1: ......
Страница 49: ... 48 Mercury II User Manual ...