A p p e n d i x B — O v e r v i e w o f t h e S c a n n i n g P r o c e s s 153
Example data flow: DuoScan T2500, final scan
CCD
12 bit
Descreen
Sharpness
Range: Dmin/Dmax
Gradation
Color CMYK
Optimize: Speed/Quality
12 bit -> 8 bit
CCD
12 bit
Descreen
Sharpness
Range: Dmin/Dmax
Gradation
Color CMYK
Optimize: Best Quality
White/Black Point
Curves
File or Photoshop
8 bit/channel
Sel. Color
White/Black Point
Curves
File or Photoshop
8 bit/channel
Sel. Color
12 -> 8 bit
Source Profile >
Destin. CMYK Profile
Source Profile >
Destin. CMYK Profile