Image Processing Reference
In-Depth Information
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Exercise 5:
Apply a 3
3 mean filter to the image in Fig.
5.20
.
Exercise 6:
Discuss the difference between the median filter and mean filter.
Exercise 7:
Apply a 5
5 difference filter to the image in Fig.
5.20
.
Exercise 8:
The image in Fig.
5.20
is correlated with the kernel K2. No kernel
normalization is performed. At the position
(
1
,
1
)
the output value is 911. What is
the value of x?
Exercise 9:
Template matching is performed on the image in Fig.
5.20
with the
template T1. Normalized cross-correlation is used. What is the output value at
position
(
1
,
3
)
?
Exercise 10:
Why are the Sobel kernels 3
×
1?
Exercise 11:
The Prewitt kernels are applied to the image in Fig.
5.20
. What is the
approximated magnitude at position
(
1
,
3
)
?
Additional exercise:
Describe the principle behind the Canny edge detector.
×
3 and not 1
×
3 and 3
×
