Question: what is pq in video?
Answer: Perceptual Quantizer (PQ), published by SMPTE as SMPTE ST 2084, is a transfer function that allows for the display of high dynamic range (HDR) video with a luminance level of up to 10,000 cd/m2 and can be used with the Rec. ... PQ is a non-linear electro-optical transfer function (EOTF).