"Luminance Peaks" can be used to describe measured luminance levels either exceeding legal limits or being clipped lower than expected based on the scene content.
Luminance Peaks impact the Technical and Content Quality of the asset. Customer experience will be adversely affected if images are so bright or dark that detail is lost on their display. High or low luminance peaks may also indicate a Full/ Legal range conversion issue.
Luminance peaks exceed legal limits or appear low based on scene content.
How to Prevent:
Monitor luminance levels using waveform scopes.
For HDR content, consider analyzing MaxFALL/ MaxCLL for potential inconsistencies.
For low luminance peaks, confirm if creative intent. Otherwise, adjust luminance to peak at intended levels.
For high luminance peaks/ levels exceeding legal limits in SDR content, luminance must be adjusted to bring it within legal limits (700mV). This is most likely a Full/ Legal range conversion issue.
For high luminance peaks in HDR content, confirm if creative intent. Otherwise, adjust luminance to peak at intended levels.