Pluge Pattern -

Originally defined within the analog PAL and NTSC standards, the concept has survived the transition to digital broadcasting (ITU-R BT.601, BT.709, and BT.2020). While the delivery mechanism has changed from analog waveform generators to digital test files, the fundamental utility of the PLUGE pattern remains unchanged.

Uses "Limited Range" video where Black is at Level 16. The Pluge helps you ensure Level 16 is true black and Level 17 is visible. pluge pattern

Analysis and Application of the PLUGE Pattern in Video Calibration and Display Engineering Originally defined within the analog PAL and NTSC

A color version uses red, green, or blue backgrounds and bars to calibrate black level per channel, which is important for avoiding color shifts in near-black areas. pluge pattern