Rabu, 25 April 2018

GRAY LEVEL

SOAL:

Di ketahui citra asli dengan Gray Level sebagi berikut:

A

B
200
100
100
100

50
50
50
50
0
200
50
50

10
100
150
200
150
0
200
0

10
100
150
200
50
50
50
200

10
100
150
200
100
100
100
100

10
100
150
200

lakukan Image enhancement dengan :

a. Image Negative
b. Tambah kecerahan 25 % (point operation)
c. Image subtraction dengan citra A dan citra B
d. Lakukan gabungan citra A dan citra B

JAWABAN :

  1.    S       = -r + L – l
    S       = L – l – r
    LA      = 200
    LB      = 200
    SA     = 200 – 255 – r               SB     = 200 – 255 - r
             = -55 – r                                     = -55 – r
    Sehingga Gray Output =

    A

    B
    -255
    -155
    -155
    155

    -105
    -105
    -105
    -105
    -55
    -255
    -105
    -105

    -65
    -155
    -205
    -255
    -205
    -55
    -255
    -55

    -65
    -155
    -205
    -255
    -105
    -105
    -105
    -255

    -65
    -155
    -205
    -255
    -155
    -155
    -155
    -155

    -65
    -155
    -205
    -255
  2.  Point Operation
    PO = r * 25%
    Output

    A

    B
    50
    25
    25
    25

    12,5
    12,5
    12,5
    12,5
    0
    50
    13
    13

    2,5
    25
    37,5
    50
    38
    0
    50
    0

    2,5
    25
    37,5
    50
    13
    13
    13
    50

    2,5
    25
    37,5
    50
    25
    25
    25
    25

    2,5
    25
    37,5
    50
  3. Image Subtraction
    A - B
    Output

    A - B
    150
    50
    50
    50
    -10
    100
    -100
    -150
    140
    -100
    50
    -200
    40
    -50
    -100
    0
    90
    0
    -50
    -100
  4.  Gabung
    A + B
    Output
    A + B
    250
    150
    150
    150
    10
    300
    200
    250
    160
    100
    350
    200
    60
    150
    200
    400
    110
    200
    250
    300





Diposting oleh di Tidak ada komentar:

Selasa, 24 April 2018

UTS CITRA DIGITAL : FILTERING

SOAL:

Nilai Citra Asli
         
10.00 200.00 150.00 160.00 150.00
10.00 250.00 0.00 75.00 75.00
10.00 125.00 80.00 0.00 130.00
10.00 125.00 245.00 255.00 0.00
10.00 125.00 5.00 50.00 50.00
50.00 125.00 25.00 5.00 25.00
60.00 125.00 35.00 30.00 5.00
100.00 100.00 90.00 90.00 80.00

Lowpass 1/5

Highpass Spatial 1/9
0.00
1.00
0.00

-1.00
-1.00
-1.00
1.00
1.00
1.00

-1.00
8.00
-1.00
0.00
1.00
0.00

-1.00
-1.00
-1.00







Lowpass Spatial 1/9

LPF 1/9
1.00
1.00
1.00

0.00
1.00
0.00
1.00
1.00
1.00

1.00
5.00
1.00
1.00
1.00
1.00

0.00
1.00
0.00

JAWABAN:

Lowpass 1/5





220.00
610.00
510.00
535.00
385.00
280.00
585.00
555.00
310.00
430.00
155.00
590.00
450.00
540.00
205.00
155.00
630.00
710.00
550.00
435.00
195.00
390.00
450.00
365.00
125.00
245.00
450.00
195.00
135.00
85.00
335.00
445.00
305.00
165.00
140.00
260.00
415.00
315.00
290.00
175.00
Output





44.00
122.00
102.00
107.00
77.00
56.00
117.00
111.00
62.00
86.00
31.00
118.00
90.00
108.00
41.00
31.00
126.00
142.00
110.00
87.00
39.00
78.00
90.00
73.00
25.00
49.00
90.00
39.00
27.00
17.00
67.00
89.00
61.00
33.00
28.00
52.00
83.00
63.00
58.00
35.00

Lowpass Spatial 1/9





470.00
620.00
835.00
610.00
460.00
605.00
835.00
1040.00
820.00
590.00
530.00
855.00
1155.00
860.00
535.00
405.00
735.00
1010.00
815.00
485.00
445.00
720.00
960.00
660.00
385.00
495.00
560.00
525.00
230.00
165.00
560.00
710.00
625.00
385.00
235.00
385.00
510.00
470.00
330.00
205.00

Output





52.22
68.89
92.78
67.78
51.11
67.22
92.78
115.56
91.11
65.56
58.89
95.00
128.33
95.56
59.44
45.00
81.67
112.22
90.56
53.89
49.44
80.00
106.67
73.33
42.78
55.00
62.22
58.33
25.56
18.33
62.22
78.89
69.44
42.78
26.11
42.78
56.67
52.22
36.67
22.78

Highpass Spatial 1/9





-380.00
1180.00
515.00
830.00
890.00
-515.00
1415.00
-1040.00
-145.00
85.00
-440.00
270.00
-435.00
-860.00
635.00
-315.00
390.00
1195.00
1480.00
-485.00
-355.00
405.00
-915.00
-210.00
65.00
-45.00
565.00
-300.00
-185.00
60.00
-20.00
415.00
-310.00
-115.00
-190.00
515.00
390.00
340.00
480.00
515.00

Output





-42.22
131.11
57.22
92.22
98.89
-57.22
157.22
-115.56
-16.11
9.44
-48.89
30.00
-48.33
-95.56
70.56
-35.00
43.33
132.78
164.44
-53.89
-39.44
45.00
-101.67
-23.33
7.22
-5.00
62.78
-33.33
-20.56
6.67
-2.22
46.11
-34.44
-12.78
-21.11
57.22
43.33
37.78
53.33
57.22

LPF 1/9





260.00
1410.00
1110.00
1175.00
985.00
320.00
1585.00
555.00
610.00
730.00
195.00
1090.00
770.00
540.00
725.00
195.00
1130.00
1690.00
1570.00
435.00
235.00
890.00
470.00
565.00
325.00
445.00
950.00
295.00
155.00
185.00
575.00
945.00
445.00
285.00
160.00
660.00
815.00
675.00
650.00
495.00

Output





28.89
156.67
123.33
130.56
109.44
35.56
176.11
61.67
67.78
81.11
21.67
121.11
85.56
60.00
80.56
21.67
125.56
187.78
174.44
48.33
26.11
98.89
52.22
62.78
36.11
49.44
105.56
32.78
17.22
20.56
63.89
105.00
49.44
31.67
17.78
73.33
90.56
75.00
72.22
55.00

Diposting oleh di Tidak ada komentar:
Langganan: Postingan (Atom)