The perceptual quantizer (PQ), published by SMPTE as SMPTE ST 2084, is a transfer function that allows for HDR display by replacing the gamma curve used in SDR.
Cinema reference displays utilizing the high dynamic range EOTF would operate under these same three conditions. Page 14. SMPTE ST 2084:2014. Page 14 of 15 ...
the EOTF is mathematically described such that the video signal utilizes the available code values of a 10-bit signal as efficiently as possible, while allowing ...