IMEMBOSS(r;b;t;a;e;d) embosses the RGB image in matrix
b specifies a “bump map” defining the peaks and valleys in the output image (typically this is a grey scale version of
t defines the texture to apply to the input matrix; scalar
a gives the angle of the light source in radians; scalar
e is the elevation of the light source in radians; scalar
d should be set to either 0 or 1 to select between the two available blending algorithms (1 produces a better effect with textured images).
Updated on December 4, 2017