Image Processing Commands; Set Halftoning Mode (Esc B) - Epson ES-1000C Reference Manual

Image Processing Commands

Image processing commands are used to modify scanned data before
sending it to the computer. Two commands are available: halftone
processing and color correction.

1. Set halftoning mode (ESC B)

Thi s c om m and enabl es or di sabl es hal f t one pr ocessi ng f or
bi - l evel dat a and quad- l evel dat a. The t ype of pr ocessi ng
per f or m ed i s out l i ned bel ow . H ow ever , t he t ype of pr ocessi ng
avai l abl e di f f ers by scanner m odel . See A ppendi x B f or det ai l s.
Thi s c om m and al s o enabl es or di s abl es Text Enhancem ent
Technol ogy. Thi s f unct i on i s onl y avai l abl e f or B5 or A 5
com m and l evel scanners or hi gher .
No data processing
Unprocessed data is sent directly to the computer. Use this setting
when scanning characters or line art that needs no processing.
Halftoning mode A
Produces hard tones using the Error Diffusion method, producing
images with higher contrast. This is appropriate for most images.
Halftoning mode B
Produces soft tones using the Error Diffusion method. This
method produces a softer image than halftoning
mode A.
Halftoning mode C
Produces an image using a screen, again using the Error Diffusion
method.
Dither mode A
Processes data using a 4 4 bayer pattern
Command Usage
2-13