Epson ActionScanner II Mac User Manual - TWAIN Mac - Page 28

Image Type Options Continued, Dropout, Setting, Capturing Images From Within Application

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Image Type Options (Continued) Setting Halftone' Dropout Quality Scanning Sequence TET ** Option None Mode A (Hard Tone) Mode B (Soft Tone) Mode C (Net Screen) Dither A (4 x 4 Bayer) Dither B (4 x 4 Spiral) Dither C (4 x 4 Net Screen) Dither D (8 x 8 Net Screen) None Red Green Blue Draft Best 1 pass 3 pass On or Off Function Determines tones by data format Uses a hard tone to produce a distinct image (1 and 2 bits/pixel per color) Uses a softer tone: most suited for images containing large areas of similar tones (1 bit/pixel per color) Uses a pattern like newspaper photographs (1 bit/pixel per color) Uses a 4 x 4 bayer dither pattern Uses a 4 x 4 spiral dither pattern Uses a 4 x 4 net screen dither pattern Uses an 8 x 8 net screen dither pattern Uses all colors in a monochrome scan Drops out reds so red areas are white in a monochrome scan Drops out greens so green areas are white in a monochrome scan Drops out blues so blue areas are white in a monochrome scan Faster scanning at a lower resolution Produces the best quality scan Scans the image with a single pass Scans the Image with three passes (available only in 16 million colors) See page 39 l When possible, let your image editing software perform halftoning. ** The Text Enhancement Technology option does not appear unless your scanner supports this feature. Capturing Images From Within Application 3-7

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Image Type Options (Continued)
Setting
Halftone’
Dropout
Quality
Option
None
Mode A
(Hard Tone)
Mode B
(Soft Tone)
Mode C
(Net Screen)
Dither A
(4 x 4 Bayer)
Dither B
(4 x 4 Spiral)
Dither C
(4 x 4 Net Screen)
Dither D
(8 x 8 Net Screen)
None
Function
Determines tones by data format
Uses a hard tone to produce a
distinct image (1 and 2 bits/pixel
per color)
Uses a softer tone: most suited for
images containing large areas of
similar tones (1 bit/pixel per color)
Uses a pattern like newspaper
photographs (1 bit/pixel per color)
Uses a 4 x 4 bayer dither pattern
Uses a 4 x 4 spiral dither pattern
Uses a 4 x 4 net screen dither
pattern
Uses an 8 x 8 net screen dither
pattern
Uses all colors in a monochrome
scan
Red
Drops out reds so red areas are
white in a monochrome scan
Green
Blue
Draft
Best
1 pass
3 pass
On or Off
Drops out greens so green areas
are white in a monochrome scan
Drops out blues so blue areas are
white in a monochrome scan
Faster scanning at a lower
resolution
Produces the best quality scan
Scans the image with a single pass
Scans the Image with three passes
(available only in 16 million colors)
See page 39
Scanning
Sequence
TET **
l
When possible, let your image editing software perform halftoning.
**
The Text Enhancement Technology option does not appear unless your
scanner supports this feature.
Capturing Images From Within Application
3-7