Figure 2
From: Blurring of ancient wall paintings caused by binder decay in the pigment layer

Optical model based on the Lambert–Beer model of layered surface objects. (a) Fresh wall painting; (b) wall painting with a degraded binder layer.
From: Blurring of ancient wall paintings caused by binder decay in the pigment layer

Optical model based on the Lambert–Beer model of layered surface objects. (a) Fresh wall painting; (b) wall painting with a degraded binder layer.