The present invention relies on a band moire image layout model capable of
predicting the band moire image layer layout produced when superposing a
base band grating layer of a given layout and revealing line grating
layer of a given layout. The base band grating layer, the revealing line
grating layer and the resulting band moire image layout may have a
rectilinear or a curvilinear layout. Thanks to the band moire image
layout model, one can choose the layout of two layers selected from the
set of base band grating layer, revealing line grating layer and band
moire image layer and obtain the layout of the third layer by
computation, i.e. automatically. The presented methods may be used for
creating an individualized protection for various categories of documents
(banknotes, identity documents, checks, diploma, travel documents,
tickets) and valuable products (optical disks, medical drugs, products
with affixed labels, watches).