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This method by Huang et al. will try to extract veins using a wide line detector.
This method by Huang et al. will try to extract veins using a wide line detector. A good value for the 'g' parameters seems to be half the number of pixels covered by the circular neighbourhood region.
Note that the input image must be of an unsigned integer type.

Literature:
- "Finger-vein authentication based on wide line...



Aligns the finger to the centre of the image using an affine transformation.
Simple finger normalisation, it aligns the finger to the centre of the image using an affine transformation. Elliptic projection which is described in the referenced...



Two vein extraction methods as described by Miura et al. for finger vein authentication.
Maximum curvature:
This method will try to extract the centre lines of the veins. This is done by calculating local maximum curvatures in...



Filtering the image using a simple mask will give a large response at the transition from background to finger. These large responses are located and used as detected finger edge. The function will return the location of these edges and will...