FIELD: physics.
SUBSTANCE: method of forming barcode on facial images includes performing image correction on size and rotation, calculating distance between two oppositely lying windows having the same width and length, equal to the width of the initial image, synchronously moving on the facial image win the vertical direction from top to bottom with a step ≥1 from the "hair/forehead" boundary to the lower boundary of the nose area, finding the maximum value from the obtained differential brightness gradients, dividing the differential brightness gradients by the maximum value, performing sampling with averaging of the obtained values, quantisation of the sampled values in the range of decimal numbers from 0 to 9, forming from the obtained decimal code a standard barcode of the image.
EFFECT: high stability of encoding facial images in conditions of changing parameters thereof and improved universality thereof owing to formation of standard barcodes.
2 cl, 8 dwg
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