OOTF system gamma from nominal peak display luminance L_W (cd/m²). γ = 1.2 + 0.42·log10(L_W/1000); γ = 1.2 exactly at L_W = 1000.
OOTF system gamma from nominal peak display luminance L_W (cd/m²). γ = 1.2 + 0.42·log10(L_W/1000); γ = 1.2 exactly at L_W = 1000.