Databases - DB4
- the fingerprints were synthetically generated by using SFinGe.
- the image size is 240x320.
- the parameters of the synthetic generator were tuned to emulate a low-cost sensor with a small acquisition area.
- the maximum rotation and displacement and skin-distortion are adjusted to roughly reproduce the perturbations in the other databases (DB1, DB2 and DB3).
Sample images from DB4; each row shows different impressions of the same finger:
Images from DB4; all the samples are from different fingers and are ordered by quality (top-left: high quality, bottom-right: low quality):