Luma
Luma is the measurement of light intensity derived from gamma-corrected (i.e., non-linear) red, green, and blue components (denoted Y′ – the “prime symbol” ( ′ ) indicates the non-linear transformation taking place).
Luma is the measurement of light intensity derived from gamma-corrected (i.e., non-linear) red, green, and blue components (denoted Y′ – the “prime symbol” ( ′ ) indicates the non-linear transformation taking place).