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.
The SMPTE ST2084 PQ system, which is defined by its EOTF, was designed to have the OOTF applied in the camera or the production process (as shown in Figure 3-6) ...
This EOTF (ST2084) is intended to enable the creation of video images with an increased luminance range; not for creation of video images with overall higher ...