Abstract: A digital fingerprint recognition method providing the steps of activating an image distortion software program on a computer, displaying a digital fingerprint image on a screen of the computer in a presentation environment for the image distortion software, and distorting the digital fingerprint image so as to correct a fault in the fingerprint detected on the digital fingerprint image. The computer system having a man/machine interface, a processing unit that is used to analyze a digital fingerprint image, coupler for accessing one or more files containing at least one digital fingerprint image and an image distortion software program that is used to display a digital fingerprint image on the man/machine interface and to distort the digital fingerprint image by the man/machine interface.

Abstract: The method of recognizing fingerprints comprises an analysis step (21) in which an expert analyses characteristic points of a fingerprint image so as to be able to differentiate the fingerprint whose image is presented to him. The method comprises a modification step (19) in which the said print image available with various levels from a grey scale is modified into a second image in which at least one grey range of the first image is parameterized so as to be represented with various levels from a colour scale. The modification makes it possible to identify the characteristic points on an unknown fingerprint image more accurately and also to compare the said image to other known fingerprint images more easily.

Abstract: The invention relates to a digital fingerprint recognition method comprising the following steps consisting in: activating an image distortion software program on a computer (3); displaying a digital fingerprint image on a screen (1) of the computer (3) in a presentation environment for said image distortion software; and distorting the digital fingerprint image so as to correct a fault in the fingerprint detected on said digital fingerprint image. The computer system comprises a man/machine interface (1, 2), a processing unit (4) that is used to analyse a digital fingerprint image, means (9) for accessing one or more files containing at least one digital fingerprint image and an image distortion software program that is used to display a digital fingerprint image on the man/machine interface (1) and to distort the digital fingerprint image by means of the man/machine interface (1, 2).

Abstract: The method of recognizing fingerprints comprises an analysis step (21) in which an expert analyses characteristic points of a fingerprint image so as to be able to differentiate the fingerprint whose image is presented to him. The method comprises a modification step (19) in which the said print image available with various levels from a grey scale is modified into a second image in which at least one grey range of the first image is parameterized so as to be represented with various levels from a colour scale. The modification makes it possible to identify the characteristic points on an unknown fingerprint image more accurately and also to compare the said image to other known fingerprint images more easily.