understanding color bars

understanding color bars: purpose significance television video production bars test pattern calibration broadcast engineering editing quality signal ntsc pal secam smpte society motion engineers composite component rgb yuv hue saturation brightness contrast chrominance luminance white level black temperature gamma grading correction space rec 709 2020 cie xyz 1931 standard definition high ultra resolution codec mpeg h 264 h 265 bitrate compression data rate interlaced progressive aspect ratio safe area