Digital Signal Processing Reference
In-Depth Information
14.10.
2
4
3
5
0 100 100 0
0 100 100 100
0 100 100 100
0100 0 0
14.11. a.
2
4
3
5
225
125
130
33
2
4
3
5
Processed image
:
101
202
101
249
119
136
6
Vertical Sobel detector
:
249
119
136
6
255
125
130
0
255
128
128
30
b.
2
4
3
5
0
106
106
0
2
3
010
1
41
010
106
255
255
106
4
5
Processed image
:
Laplacian edge detector
:
106
255
255
106
117
223
223
117
0
117
117
0
14.13.
Blue is dominant in the area pointed to by the arrow; red is dominant in the background.
14.15.
"
460
#
"
115
#
X
u; v
¼
40
and
A
u; v
¼
10
240
140
60
35
14.16.
"
#
230
20
Forward DCT
: Fðu; vÞ¼
120
70
14.17.
"
110
#
100
Inverse DCT
: pði; jÞ¼
100
90
14.19. a.
(0,
2) (3, 4), (2,
3), (0, 7), (4,
2), (0, 0)
b.
ð
0000
;
0010
;
01
Þ; ð
0011
;
0011
;
100
Þ; ð
0010
;
0010
;
00
Þ;
ð
0000
;
0011
;
111
Þ; ð
0100
;
0010
;
01
Þ; ð
0000
;
0000
Þ
14.19. a.
(0,
2) (3, 4), (2,
3), (0, 7), (4,
2), (0, 0)
b.
ð
0000
;
0010
;
01
Þ; ð
0011
;
0011
;
100
Þ; ð
0010
;
0010
;
00
Þ;
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