Fingerprint ridge image synthesis system, fingerprint ridge image synthesis method, and the program

摘要

An object of the present invention is to play the fingerprint-consuming to accurately extract the shape of the ridge to the fingerprint original image that is included in the fingerprint original image clearly on the image. A ridge distance corresponding to each pixel by applying a continuous wavelet transform on the gradation of each pixel included in the fingerprint an original image, and calculates the parameter value including a ridge angle, wavelet phase a ridge pixel parameter calculation unit 13, a label optimization processing unit 14 to optimize conversion to a value indicating a mutual continuity with the parameter values of the peripheral pixels a parameter value corresponding to each pixel, each pixel of the fingerprint original image a ridge image generation unit 15 for reproducing the ridge line image by converting, based tone on the optimum value, further comprising: a. .FIELD 1