Epson Expression 636 User Manual - TWAIN 32 - Page 99

Dither pattern D

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t Dither pattern A Halftone is expressed in 4 by 4 bayer dither pattern. t Dither pattern B Halftone is expressed in 4 by 4 spiral pattern. t Dither pattern C Halftone is expressed in 4 by 4 net screen dither pattern. t Dither pattern D Halftone is expressed in 8 by 8 net screen dither pattern. Dither pattern A Dither pattern B Dither pattern C Dither pattern D Note: Changing the size of a halftone-processed image with your application software may degrade the image. Instead use the scanner's scale function at the time of scanning to select your desired image size. Expression 636 Scanner Settings B-9

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Expression 636 Scanner Settings
B-9
Dither pattern A
Halftone is expressed in 4 by 4 bayer dither pattern.
Dither pattern B
Halftone is expressed in 4 by 4 spiral pattern.
Dither pattern C
Halftone is expressed in 4 by 4 net screen dither pattern.
Dither pattern D
Halftone is expressed in 8 by 8 net screen dither pattern.
Note:
Changing the size of a halftone-processed image with your application
software may degrade the image. Instead use the scanner’s scale function
at the time of scanning to select your desired image size.
Dither pattern A
Dither pattern B
Dither pattern C
Dither pattern D