Image Functions
3-20
3.3.2
IPC mode (Auto II mode)
[A.3.3.3 IMAGE CINTROL command]
(1)
Simplified Dynamic Threshold
The parameters which affects Simplified Dynamic Threshold are shown in Table 3.15.
Table 3.15 Parameter for Simplified Dynamic Threshold
Parameter
Image control register
No.
value
Default
Simplified Dynamic Threshold OFF
B’xxxx10xx’
Simplified Dynamic Threshold ON
B’xxxx11xx’
Variance rate
Default
1 : Small
to
7 : Large
A#4/B#4
B’x000xxxx’
B’x001xxxx’
to
B’x111xxxx’
OFF
In this mode, the algorithm of dynamic threshold is deferent between IPC-2D and IPC-3D.
This mode is recommended for general electric filing purpose.
Table 3.16 Algorithm of Simplified Dynamic Threshold
Option
Algorithm of the Dynamic Threshold
Condition
IPC-2D:
Simplified Dynamic Threshold
Anytime
Simplified Dynamic Threshold
When Image Emphasis is not
specified
IPC-3D:
IPC-2 like Simplified Dynamic
Threshold
When Image Emphasis is specified
a)
Simplified Dynamic Threshold
The Simplified Dynamic Threshold is effective to obtain sharp images or capture texts having
colored backgrounds. This effect is similar to Image Emphasis. The difference is that the
Simplified Dynamic Threshold does not emphasis the background. This is useful for forms,
checks and most real world document.In IPC mode, Simplified Dynamic Threshold was a
simplified implementation of the Dynamic threshold. In IPC-2D, Simplified Dynamic
Threshold is no simpler, but sometimes more effective than Dynamic Threshold for
background texts. In IPC-3D, both Dynamic Threshold are the same and sophisticated.
b)
IPC2 like Simplified Dynamic Threshold
IPC-3D supports IPC-2 like Simplified Dynamic Threshold for compatibility purpose. When
both Image Emphasis and Simplified Dynamic Threshold are set, it is regarded as IPC-2 like
Simplified Dynamic Threshold. In this case, IPC-3D Sensitivity parameters in Simplified
Dynamic Threshold are used as the Variance Rate, and Image Emphasis parameters are used
for emphasis. The IPC-2 like Simplified Dynamic Threshold increases resolution.
Summary of Contents for M3097DE
Page 1: ...C150 E102 01EN M3097DE Image Scanner OEM Manual...
Page 2: ......
Page 4: ...This page is intentionally left blank...
Page 42: ...3 3 Optional image function 3 21...
Page 43: ...Image Functions 3 22 The conceptual image processing flow in the IPC mode is shown below...
Page 45: ...Image Functions 3 24...
Page 70: ...5 3 Cleaning 5 15 Two rollers are included Figure 5 5 Pick roller...
Page 73: ...6 3 Figure 6 1 Jam clearance...
Page 197: ...Scanner Interface Appendix A 124 5 Dimensions of the board For M3093EX DE and M3097DE...