Ứng dụng phép toán hình thái cho bài toán phát hiện khuôn mặt dựa vào màu da (Đồ án tốt nghiệp)

-----o0o-----


-----o0o-----

Cán b

2017

CT1701

2


-

-

-----o0o-----

Mã sinh viên: 1312101015

CT1701

3


2. Các s li u c n thi

thi t k , tính toán

m th c t p

CT1701

4


..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................

..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
ngày tháng
ngày tháng
Sinh viên

CT1701

5


.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................

.......................................................................................................................................

.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................

.......................................................................................................................................
.......................................................................................................................................

CT1701

6


.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................

.......................................................................................................................................
.......................................................................................................................................

CT1701

7


Thông tin -

oàn

Em xin

CT1701

8


............................................................................................... 1
..................................................................................................... 9
................................................ 11
..................................................................................................... 12
............................ 13

1.1

...................................................................... 13

1.1.1

......................................................................... 13

1.1.2 Các không gian màu.................................................................... 14
1.1.3

............................................................................. 18

1.2

.................................................... 19

1.2.1

........................................................................... 19

1.2.2

............................................................. 20

1.2.3 Phép co ( Erosion )...................................................................... 20
1.2.4

........................................................................ 20

1.2.5

..................................................................... 21

1.2.6

................................... 21

1.3

........................................................... 26

1.3.1

.............................................. 26

1.3.2

...................................... 26

1.3.3

....... 27
............ 29

2.1

biên. ............................... 29

2.1.1

.................................................. 29

2.1.2

.................................................................... 31

2.2

............................................... 32

2.2.1

.................................................. 32

2.2.2

.................................................................... 33

2.3

............................................ 35

2.3.1

.................................................. 36

2.3.2

.................................................................... 39
CT1701

9


2.4

........ 41

2.4.1

-like..................................................................... 41

2.4.2

................................... 44

2.4.3

.................................................................... 45
............................................................................................. 46

3.1

................................................................................ 46

3.2

......................................................................... 47

3.3

.......................................................... 48

3.3.1

................................................... 48

3.3.2

............................... 49

3.4

............................................................................ 52

3.5 Cà

............................................................................ 55

3.5.1

.................................................... 55

3.5.2

............................................................... 55

3.5.3

............................................. 57

3.5.4

....................................................... 62

3.5.5

...................... 65
................................................................................................. 66

........................................................................... 67

CT1701

10


Hình 1.2: Mô hình không gian màu RGB
Hình 1.3: Mô hình không gian màu YcbCr
Hình 1.5: Mô hình không gian màu HSV
phân

CT1701

11


CT1701

12


1.1
1.1.1

Hình 1.1
CT1701

13

ng, còn

1.1.2 Các không gian màu
Không gian màu RGB

Hình 1.2: Mô hình không gian màu RGB
CT1701

14


Không gian màu YCbCr

+

*

[1.1]

Y=[

CT1701

15


Hình 1.3: Mô hình không gian màu YcbCr
o

Hình 1.4

n màu H,S

trong

CT1701

16


Hình 1.5: Mô hình không gian màu HSV

CT1701

17


[1.2]

V = max

max=max(r,g,b); min=min(r,g,b).

1.1.3

CT1701

18

1.2

1.2.1

rúc

sau:
B(i,j)

{0;1}

Hình 1.6

CT1701

19


1.2.2

A

B= c

c =a + b, a

A, b

B

[1.3]

Phép toán
:
(I

)( x,y ) = max( I ( x+i, y + i )+H ( i, j )) | ( i, j )

DH )

[1.4]

H

1.2.3 Phép co ( Erosion )

A

B = c (B)c

A

( I H )( x, y ) = min( I ( x+i, y+j ) - H( i, j ) | ( i, j ) DH )

[1.5]

[1.6]

H

1.2.4

CT1701

20


Open(A) = (A

B)

B

[1.7]

B)

B

[1.8]

1.2.5

Close(A) = (A
1.2.6

p

Ab = A ( A

B)

[1.9]
:

Hình 1.7

CT1701

21


n nhãn
0

x0 = 1;
Do
=(
Until xk = xk-1
K t qu

cl

y cu

c là

H=A

Hình 1.8

CT1701

22


Thin(A, B) =

=

[1.10]

B = (B1,B2)

Hình 1.9

Thicken(A,B) =

[1.11]

Hình 1.10

CT1701

23


k

S ( A)

S k ( A)

[1.12]

k 0

:

K= max{k|(A

[1.13]

Hình 1.11

CT1701

24


B2

B4
X1

3:

1,B2

8

Bk =

Hình 1.12

h

CT1701

25