IEVref:845-24-125ID:
Language:enStatus: Standard
Term: effective visual density
Synonym1: effective luminous density
Synonym2:
Synonym3:
Symbol: Dv
Definition: logarithm to base 10 of the quotient of the luminance of the adopted white of a scene or original, Yadopted white, and the luminance of a measured area of the scene or original, Ymeasured area

D v = log 10 Y adopted  white Y measured  area MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdh9vqqj=hEeea0xXdbb a9frFj0=OqFfea0dXdd9vqaq=JfrVkFHe9pgea0dXdar=Jb9hs0dXd bPYxe9vr0=vr0=vqpWqaaeaaciWacmGadaGadeaaeaGaauaaaOqaai aadseadaWgaaWcbaaccaGaa8NDaaqabaGccqGH9aqpjaaqcaqGSbGa ae4BaiaabEgakmaaBaaaleaacaaIXaGaaGimaaqabaGcdaWcaaqaai aadMfadaWgaaWcbaGaaeyyaiaabsgacaqGVbGaaeiCaiaabshacaqG LbGaaeizaiaaykW7caaMc8Uaae4DaiaabIgacaqGPbGaaeiDaiaabw gaaeqaaaGcbaGaamywamaaBaaaleaacaqGTbGaaeyzaiaabggacaqG ZbGaaeyDaiaabkhacaqGLbGaaeizaiaaykW7caaMc8Uaaeyyaiaabk hacaqGLbGaaeyyaaqabaaaaaaa@5D7C@

Note 1 to entry: The effective visual density has unit one.


Publication date:2020-12
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