Types of Colour Video Signals

• Component video - each primary is sent as a separate video signal.
  • The primaries can either be RGB or a luminance-chrominance transformation of them (e.g., YIQ, YUV).

  • Best colour reproduction

  • Requires more bandwidth and good synchronization of the three components

• Composite video - colour (chrominance) and luminance signals are mixed into a single carrier wave. Some interference between the two signals is inevitable.

• S-Video (Separated video, e.g., in S-VHS) - a compromise between component analog video and the composite video. It uses two lines, one for luminance and another for composite chrominance signal.