vektorskop
Vektorskop, known as vectorscope in English, is a display instrument used in video production and broadcast to visualize the chrominance component of a video signal. It presents color information on a circular chart where each point corresponds to a hue angle and saturation; the angle indicates hue and the distance from the center indicates saturation. In operation, the device receives a color difference signal (such as U and V or Cb and Cr) derived from the YCbCr or YUV encoding. A reference vector may indicate the target color space, commonly Rec. 709 for HD, with markers for skin tones or color-saturation limits.
Vektorskop can be standalone or integrated into a waveform monitor or a software tool in modern editing
Historically, vectorscopes were analog CRT devices used in early television production; with digital production they remain
Terminology: In Norwegian and Swedish contexts the instrument is called vektorskop. In English-language literature it is