ISF HDR Standards & Tone Mapping

Question 1

What does HDR stand for in modern display technology?

Accepted Answer

High Dynamic Range

Answer

HDR stands for High Dynamic Range, referring to the greater luminance range between the darkest and brightest output a display can produce.

Question 2

Which HDR format uses only static metadata applied uniformly to the entire content?

Accepted Answer

HDR10

Answer

HDR10 uses static metadata (SMPTE ST 2086) set once for the entire content, unlike dynamic metadata formats that adjust per scene or frame.

Question 3

What is the theoretical maximum luminance that SMPTE ST 2084 (PQ) was designed to represent?

Accepted Answer

10,000 nits

Answer

SMPTE ST 2084 was designed to encode up to 10,000 nits, which represents the approximate limit of human visual tolerance.

Question 4

HLG (Hybrid Log-Gamma) was jointly developed by which two broadcasting organizations?

Accepted Answer

BBC and NHK

Answer

HLG was developed jointly by BBC and NHK as a broadcast-friendly HDR standard that maintains backward compatibility with SDR infrastructure.

Question 5

What does EOTF stand for in display calibration terminology?

Accepted Answer

Electro-Optical Transfer Function

Answer

EOTF (Electro-Optical Transfer Function) defines the relationship between an encoded electrical signal and the resulting light output from a display.

(ISF) Imaging Science Foundation Certification Practice Test