Abstract: A method of processing a papillary print includes a step to detect a singular zone on the image, the singular zone being characterised by a position, and an orientation representative of a value of the gradient of the intensity of the image; a step to extract control patches, each control patch having one of the singular zones detected in step a); a step to project control patches in a reference base, so as to determine the projection coordinates of each control patch on the reference base, projection of a control patch on the reference base forming a projected patch; and a step to calculate a difference in projection of control patches relative to the projected patches.

Abstract: The invention relates to a method of processing a papillary print comprising: a) a step to detect a singular zone on the image, the singular zone being characterised by a position (p), and an orientation (?) representative of a value of the gradient of the intensity of the image; b) a step to extract control patches, each control patch comprising one of the singular zones detected in step a); c) a step to project control patches in a reference base, so as to determine the projection coordinates of each control patch on said reference base, projection of a control patch on the reference base forming a projected patch; d) a step to calculate a difference in projection of control patches relative to the projected patches.