Fingerprint enhancement over the past few years

This paper furnishes a review of the research trends and the methodologies adopted and adapted for enhancing fingerprints in the recent past. Our area of focus is primarily latent fingerprints. Previously, the studies on fingerprint enhancement segregate the techniques mostly in spatial and frequency domains. But, in our paper we have broadly divided the enhancement technics into Gabor based and non-Gabor based (variations of conventional Gabor and others).