الملخص

A set of reliable techniques is presented in this paper. These techniques include    enhancement and minutiae extraction that involve   the clarity of the ridge and valley structures of the input fingerprint images based on the frequency and orientation of the local ridges and thereby extracting correct minutiae.             Fingerprint image enhancement algorithms are evaluated and implemented to understand how the enhancement algorithm works and how well it is. Two   types of features   are presented in this  job. (i) global ridge associated with central region of the fingerprint and (ii) minutiae associated with local ridge and  furrows structure.  Extraction of minutiae, involves  a series of image enhancement   such as normalization, ridge orientation estimation, filtering, thresholding, thinning and False minutiae removal. After applying  image enhancement and minutiae extraction techniques on a set of images, we took as a sample, the results was perfect. The minutiae has been removed and a results, we got was in  better condition.