Please see http://ffpis.sourceforge.net/ and http://sourceforge.net/projects/ffpis/ Fingerprint Imaging Software -- fingerprint pattern classification, minutae detection, Wavelet Scalar Quantization(wsq) compression, ANSI/NIST-ITL 1-2000 reference implementation, baseline and lossless jpeg, image utilities, math and MLP neural net libs This is part of the img libs.