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Leaf painting is the process of painting with dyed leaves. Deriving from Japan , China or India , it became popular in Vietnam . Its two main forms are: Cutting and pasting dry leaf to make leaf paintings or using paint to draw onto the surface of dry leaf to make leaf paintings.
The leaf angle distribution (or LAD) of a plant canopy refers to the mathematical description of the angular orientation of the leaves in the vegetation. Specifically, if each leaf is conceptually represented by a small flat plate, its orientation can be described with the zenith and the azimuth angles of the surface normal to that plate.