Assertion: image | /r/HasAspect | same absolute luminance
Facets:
value: given equal whitepoints
type: OTHER
Source sentences:
text: In addition to the same (relative) luminance, this method also ensures that both images will have the same absolute luminance when displayed, as can be measured by instruments in its SI units of candelas per square meter, in any given area of the image, given equal whitepoints.