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ADV7195
SHARPNESS FILTER AND ADAPTIVE FILTER
APPLICATION EXAMPLES
Sharpness Filter Application
The sharpness filter can be used to enhance or attenuate the Y
The effect of the sharpness filter can also be seen when using
the internally generated crosshatch pattern.
Table VI.
video output signal.
The following register settings were used to achieve the results
Address
Register Setting
shown in Figure 44a and Figure 44b.
Input data was generated by an external signal source.
Table V.
00hex
01hex
02hex
03hex
04hex
Mode Register 0
Mode Register 1
Mode Register 2
Mode Register 3
Mode Register 4
00hex
85hex
00hex
38hex
00hex
Address
Register Setting
05hex
Mode Register 5
00hex
00hex
Mode Register 0
40hex
09hex
Mode Register 6
3Ehex
01hex
02hex
03hex
04hex
05hex
09hex
10hex
10hex
10hex
10hex
10hex
10hex
Mode Register 1
Mode Register 2
Mode Register 3
Mode Register 4
Mode Register 5
Mode Register 6
Filter Gain
Filter Gain
Filter Gain
Filter Gain
Filter Gain
Filter Gain
81hex
00hex
78hex
00hex
00hex
3Ehex
00hex (a)
08hex (b)
04hex (c)
40hex (d)
80hex (e)
22hex (f)
TEK RUN
T
TRIG ’ D
TEK RUN
T
TRIG ’ D
R2
R4
1
T
(A)
(B)
(C)
1
R1
R2
T
(D)
(E)
(F)
CH1 500mV
M 4.00 s
CH1
CH1 500mV
M 4.00 s
CH1
ALL FIELDS
ALL FIELDS
REF4
500mV
4.00 s T
9.99976ms
REF2
500mV
4.00 s T
9.99976ms
(a)
(b)
Figure 44. Sharpness Filter Control with Different Gain Settings for Filter Gain
–24 –
REV. A
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