How can you have a scene linear reflectance greater than 100%?

Started 3 months ago | Questions thread
Jack Hogan Veteran Member • Posts: 7,873
Re: Reflectance & scatter - why solid angles matter

Mandem wrote:

Or are you saying calculate the Reflectance value for the diffuse reflective 100% paper and the reflectance value for whatever object and divide the 2 so:

Reflectance of Object / Reflectance of 100% diffuse reflective white paper

Paper is typically not a good material if one is after a reference for white diffuse reflectance. Perfection is never possible in nature but decent approximations can be obtained from dry powders made from solid particles of the right size with a high index of refraction. Diamond powder is apparently tops, if a bit expensive compared to alternative powders like MgCO3, TiO2 or PTFE (Teflon).

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