color image process

1. 4.6 Color Image Processing
• Color
– simplifies object extraction and identification
– human vision : thousands of colors vs max-24
gray levels
• Color Spectrum
– white light with a prism (1966, Newton)

2. 4.6 Color Image Processing
• RGB : Color Monitor, Color Camera, Color Scanner
• CMY : Color Printer, Color Copier
• YIQ : Color TV 표준 , Y(luminance), I(Inphase),
Q(quadrature)
– HSI, HSV

3. 4.6 Color Image Processing
• RGB Model

4. 4.6 Color Image Processing
• CMY Model
– Color Printer, Color Copier
– RGB data CMY


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
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B
G
R
Y
M
C
1
1
1

5. 4.6 Color Image Processing

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1

6. 4.6 Color Image Processing

7. 4.6 Color Image Processing
• RGB to HSI Conversion
1
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