Device and method for transition between luminance levels

A device for processing video content comprising a first part and a second part, the device comprising at least one processor configured to:

• obtain a first luminance value for the first part, the first part comprising L final frames, the first luminance value equal to an average frame light level for a plurality of the L final frames;
• obtain a second luminance value for the second part, the second part immediately succeeding the first part, the second part comprising L first frames, the second luminance value equal to an average frame light level for a plurality of L first frames;
• adjust a luminance of a frame of the second part based on the first luminance value and the second luminance value;
• and
• store the luminance adjusted frame of the second part.

A non-transitory computer readable medium storing program code instructions that, when executed by a processor, implement the steps of a method for processing video content comprising a first part and a second part, the method comprising:

• obtaining a first luminance value for the first part, the first part comprising L final frames, the first luminance value equal to an average frame light level for a plurality of the L final frames;
• obtaining a second luminance value for the second part, the second part immediately succeeding the first part, the second part comprising L first frames, the second luminance value equal to an average frame light level for a plurality of L first frames;
• adjusting a luminance of a frame of the second part based on the first luminance value and the second luminance value;
• and
• storing the luminance adjusted frame of the second part.