figure 13. figure 14
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Figure 13
Figure 14
Figure 15
100% Saturation
50% Saturation
25% Saturation
Luminance Signal Y
H and V Sync Pulses
Modulated Chrominance
Color Burst
Composite
Video Signal
Figure 16a
Gate
Figure 16b
Color Sub-carrier: In-phase component
Color Sub-carrier: Quadrature-phase component
Video signal
Color Burst
Raw Luminance Signal
Add Syn Pulses
Add Chrominance
Add Color Burst
64s
250ns Line frequency = 1/ 64s = 15625Hz
-0.33
1.33
Peak White 1.0 Black Level 0.0
Figure 17
Figure 18
308 309 313 314 315 316 317 318 319310 311 312
1 2 3 4 5 6 7
1 2 3 4 5 6 7621 622 623 624 625
Field 1
Field 2
Field 3
Start
Figure 19
Basic principle: Chrominance = Ucost + V(cost+90o)
In Practice:
Gamma Correction
Weighted RGB-YUV Conversion
RGB R’G’B’ YUV
Figure 20
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