Frequency modulation

As well as amplitude modulation it is possible to apply the principles of frequency modulation to a painting as shown above.

This painting entitled Wellington Barn Lanyon Waterfront is such a painting, wherein the Wellington cityscape modulates the old barn at Lanyon by shifting the frequency of light reflected by the paint in the representation of the barn so that it is 50 Gigahertz higher wherever the modulation occurs, this being effected by substitution of one colour paint appropriately for another. The paint colour shifts are calculated using the spectral curves for the paints supplied by their manufacturers.
The resulting painting comprises views which interfere optically with one another In such a way that it is difficult to decide which is the modulating scene and which is the modulated scene. This is a characteristic of this style of painting and the titles are chosen to allow either interpretation.
Viewers comment that the interpretation of such paintings depends upon the viewing distance. It is remarked that when viewed from a distance this frequency modulated painting appears to be the old barn modulated by Wellington, but when viewed close up it appears to be Wellington modulated by the old barn.