3.3 Optional image function

(3)Automatic Separation

[A.4.7 SET WINDOW command / Automatic Separation]

With this feature, the scanner automatically recognize the text areas and photo areas on the document. For the areas that are recognized as text areas, scanned data are processed as pure binary with no halftone algorithm (fixed threshold or automatic binarization). For areas that are recognized as photo areas, scanned data are processed with a halftone algorithm (Dither or Error Diffusion).

Table 3.15

Parameter of Automatic Separation

 

Parameter

Value

 

Effect

Default

 

 

 

 

 

OFF

X’00’

 

Automatic Separation OFF

OFF

 

 

 

 

 

ON

X’80’

 

Automatic Separation ON *1 *2

 

*1 Simplified DTC and Image Emphasis are available for binary regions.

*2 In IPC-2D, other image processing as Simplified Dynamic Threshold and Image Emphasis are ignored.

3-25