noun
background reflectance
Technical term in computing and imaging; refers to the proportion of light reflected by the background surface.
画像処理では、背景反射率を補正することで被写体をより鮮明に抽出できる。
In image processing, correcting the background reflectance allows the subject to be extracted more clearly.
Compound of 背景 (background) + 反射率 (reflectance).