IMAGE PROCESSING 26 January, 2001
6-26
Generation Copy Mode
Generation Copy, based mainly on text mode, aims to achieve the best
reproduction of copied originals (so called “generation copies” or copies of copies).
This mode employs an MTF filter weaker than that of the text mode to eliminate
spurious dots, uses the γ coefficient to smooth the image, and uses generation
processing to thicken thin lines. Soft employs an MTF filter weaker than the Normal
setting to achieve a softer image with less moiré. Sharp employs an MTF filter
stronger than that for Normal to emphasize lines for better image quality.
Image Processing Flow Related SP Modes
Scanner Image
Correction
Shading Correction
!
Pre-Entry
Processing
Background Erase SP4-4903-69 (Background Erase Level)
!
Smoothing SP4-903-16 (Pre-Filter Coefficient)
!
Magnification Main Scan Direction SP2-909-01 (Main Scan Magnification)
!
Independent Dot Erase SP4-903-64 (Independent Dot Erase Level)
!
Generation Mode SP4-903-75~77 (Line Width Detection)
Filter
Processing
MTF Correction SP4-903-57 (MTF Filter Coefficient)
SP4-903-58 (MTF Filter Strength)
!
Density Control
γ Coefficient
!
Grayscale
Processing
Dither/Error Diffusion
To Next Page
Loading...
Need help?
General
