1. ��트 ¶

1.1. �� ¶

��

1.2. ��표 ¶

Image�� ISBN �� , 해��
��

2. 1D Barcode Image Recognition ¶

2.1. Symbology ¶

1�� 하�� 해�� 해�� 해해�� 한��.
��, �� 표��하�� 한 ��. �� 해�� 해�� 하�� .

2.1.1. Bar and Space ¶

Bar�� , Space�� 흰 ��, �� Black, White�� 표��하�� 한��.

2.1.2. X-dimension ¶

�� Bar �� Space(�� 폭 ��)�� 한��.

2.1.3. Quite Zone ¶

�� 하�� 해, �� X-dimension�� 10�� Space�� 한��.
�� 하��. ��한 화�� , ��플�� 하�� 해 �� 하�� 하�� .

2.1.4. Check Digit ¶

�� 하�� 하�� 해. �� .

2.2. EAN-13 Symbology ¶

EAN-13�� 13�� (Check Digit 포함)�� 하�� 해��할 �� .
EAN-13�� 해 �� 페��(��) : http://www.barcodeisland.com/ean13.phtml

2.2.1. �� ¶

1�� bar, 0�� space�� . X�� 하��
Left(Start) Guard
- 101
Left Characters
- 0XXXXX1 * 6 (space�� 해�� bar�� )
Center Guard
- 01010
Right Characters
- 1XXXXX0 * 6 (bar�� 해�� space�� )
Right(End) Guard
- 101
Start, End Guard�� .
Center Guard�� Left Characters�� Right Characters�� 하�� .
Left Characters�� Right Characters�� 6�� .
�� 한 �� Left Characters�� Encoding�� 해��한��. (�� Encoding�� )
Right Characters�� 한 �� Check Digit ��.

2.2.2. X-dimension ¶

�� Bar �� Space�� 폭 �� X-dimension�� 4��.

2.2.3. Check Digit ¶

EAN-13�� Check Digit�� 한 ��, �� 12�� .
�� 12�� 하�� 합하��, 합한 �� 10�� 10�� Check Digit�� .
- �� 1, 3, �� 패��. �� 1�� 하��, ... , �� 3�� 한��.

# Python
def generate_isbn_check_digit(numbers):	# Suppose that 'numbers' is 12-digit numeric string
    sum = 0;
    for i, number in enumerate(numbers):
        if i%2 == 0:
            sum += int(number) * 1
        else:
            sum += int(number) * 3
    return 10 - sum % 10

2.2.4. Encoding ¶

2.2.4.1. Character ¶

0�� space, 1�� bar�� 한��.

Character	Left(Odd)	Left(Even)	Right
0	0001101	0100111	1110010
1	0011001	0110011	1100110
2	0010011	0011011	1101100
3	0111101	0100001	1000010
4	0100011	0011101	1011100
5	0110001	0111001	1001110
6	0101111	0000101	1010000
7	0111011	0010001	1000100
8	0110111	0001001	1001000
9	0001011	0010111	1110100

Encoding�� 해��하�� 해 �� 표�� 통해 �� 파��해�� .
Left(Odd), Right�� 트�� 하�� .
Left(Even), Right�� 트�� 하�� .
0 �� 1�� 4��.
Left�� 트�� 0, �� 트�� 1��, Right�� .
- �� 트 5��(32 ��)�� 하��, Left(Odd), Left(Even) �� .
�� 해 0, 1�� 하�� 항�� 4��.
- ��, 하�� 해 2�� Bar�� 2�� Space�� 한��.

2.2.4.2. First Number ¶

��페�� 해 �� 표�� 12��. �� 하�� Left Character�� 해��해 �� 한��. �� 8801067070256 �� EAN-13 �� , �� '8'�� 801067070256 ��, �� Left Character�� 해��하�� 801067�� 한��.

3. Image Processing (with Google Android) ¶

3.1. YUV Image Format ¶

Y(휘�� 호, 화�� ), U(Cb, 휘�� 호�� ), V(Cr, 휘�� 호�� )

3.1.1. Planar and Packed ¶

Packed�� Y, U, V�� 포��.
Planar�� Y, U, V�� 포��.

3.1.2. NV21 (Planar) ¶

�� 항�� 포�� 한��.
Planar Format��, �� 크�� Y �� , �� 크�� U, V �� 한��.

3.1.3. YV12 ¶

�� API level 12(허�� 3.1.x)�� 항�� 포�� 한��.

3.2. Threshold ¶

�� 표��하��, Object �� 하�� 하�� 함
�� 흑�� 해 ��행할 �� (�� )�� , �� 흰�� 환하�� .

3.2.1. Global Threshold ¶

�� 해 하�� 화하�� .

3.2.2. Adaptive Threshold ¶

�� , �� Global Threshold�� 행하�� 한 �� 힘��.

ISBN_Barcode_Image_Recognition

Contents

1. ��트 ¶

1.1. �� ¶

1.2. ��표 ¶

2. 1D Barcode Image Recognition ¶

2.1. Symbology ¶

2.1.1. Bar and Space ¶

2.1.2. X-dimension ¶

2.1.3. Quite Zone ¶

2.1.4. Check Digit ¶

2.2. EAN-13 Symbology ¶

2.2.1. �� ¶

2.2.2. X-dimension ¶

2.2.3. Check Digit ¶

2.2.4. Encoding ¶

2.2.4.1. Character ¶

2.2.4.2. First Number ¶

3. Image Processing (with Google Android) ¶

3.1. YUV Image Format ¶

3.1.1. Planar and Packed ¶

3.1.2. NV21 (Planar) ¶

3.1.3. YV12 ¶

3.2. Threshold ¶

3.2.1. Global Threshold ¶

3.2.2. Adaptive Threshold ¶

ISBN_Barcode_Image_Recognition

Contents

1. ��������트 ¶

1.1. ������ ¶

1.2. ���표 ¶

2. 1D Barcode Image Recognition ¶

2.1. Symbology ¶

2.1.1. Bar and Space ¶

2.1.2. X-dimension ¶

2.1.3. Quite Zone ¶

2.1.4. Check Digit ¶

2.2. EAN-13 Symbology ¶

2.2.1. ��������� ������ ¶

2.2.2. X-dimension ¶

2.2.3. Check Digit ¶

2.2.4. Encoding ¶

2.2.4.1. Character ¶

2.2.4.2. First Number ¶

3. Image Processing (with Google Android) ¶

3.1. YUV Image Format ¶

3.1.1. Planar and Packed ¶

3.1.2. NV21 (Planar) ¶

3.1.3. YV12 ¶

3.2. Threshold ¶

3.2.1. Global Threshold ¶

3.2.2. Adaptive Threshold ¶

1. ��트 ¶

1.1. �� ¶

1.2. ��표 ¶

2.2.1. �� ¶