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3-1
Chapter 3 Image Functions
3.1 Overview of the image functions
The image functions of this scanner are summarized in Table 3.1 and Table 3.2.
Table 3.1 Image functions
Selectable parameters
Section No. and Image function
No IPC
option
with IPC-2D
option
With IPC-3D
option
3.2.1 Output resolution 100/150/200/240/300/400/600 dpi
(1) Offset and size See section 3.3.2 (1)3.2.2 Main Window
clipping
(2) Page end detection ON/OFF
Density
Contrast3.2.3 Binary reading
White level following ON/OFF
(1) Dither Four built-in patterns
3.2.4 Halftone reading
(2) Error diffusion ON/OFF
3.2.5 Grayscale reading Contrast
3.2.6 Compression MH/MR/MMR
(1) Pre-filter N/A Ordinary/Ball-point Pen
(2) Gradation N/A High Contrast
/Ordinary
Ignored *3
(3) Dynamic threshold curve N/A 8 types
(Darkness)
8 steps
(Sensitivity) *2
(4) Equal to white N/A ON/OFF
(5) Noise Removal N/A OFF / 2x2 / 3x3 / 4x4 / 5x5
3.3.1 DTC
mode
*1 *2
(6) Smoothing N/A Image/OCR
Simplified Dynamic Threshold
*2 *5
N/A 7 steps
(variance rate)
7 steps
(Sensitivity) *4
IPC-2 like Simplified Dynamic
Threshold *5
N/A N/A 7 steps
(Sensitivity)
High/Mid/Low
(1) Image Emphasis N/A High/Mid/Low
Image Emphasis (smooth) N/A Smooth Background
Removal *7
(2) Outline Extraction N/A ON/OFF
(3) Automatic Separation N/A ON/OFF *6
(4) Mirror image N/A ON/OFF
3.3.2 IPC mode
*1
(5) Black and White reverse N/A ON/OFF
3.3.3 Sub window N/A Max. 4 Ignored *8
3.3.4 Zooming N/A See Table 2.4
3.3.5 Dither downloading N/A Max. 8 patterns
3.3.6 Gamma downloading N/A Max. 5 patterns
*1 DTC and IPC mode functions are exclusive.
*2 In IPC-3D, DTC and IPC mode Simplified DTC use the same algorithm.
*3 In IPC-3D, The Gradation parameter is ignored.