BARCODE
Graphic information in the form of a sequence of lines varying in thickness and (or) rectangular geometric figures. This information is intended to be read by special devices. A barcode may have security features (UV luminescence, magnetic ink, etc.).
Depending on the encoding method, the following types of barcodes are distinguished:
※a linear barcode is encoded and read in one direction;
※a two-dimensional barcode is encoded and read not only horizontally but also vertically.
a
b c
a — Paper substrate;
b — the same. Linear barcode. Letterpress;
c — the same. Linear barcode. Reverse side of the print. Oblique light
a b
a — Paper substrate;
b — the same. Two-dimensional barcode. Zoomed fragment. Laser printing