bob/db/verafinger/models.py

@@ -168,7 +168,7 @@ class File(Base, bob.db.base.File):
 
     Returns:
 
-      numpy.ndarray: A 2D array of 8-bit unsigned integers corresponding to
+      numpy.ndarray: A 2D array of 16-bit unsigned integers corresponding to
         annotations for the given fingervein image. Points are loaded in (y,x)
         format so, the first column of the returned array correspond to the
         y-values while the second column to the x-values of each coordinate.

doc/guide.rst

@@ -81,6 +81,17 @@ index and a second time the second index. The whole process took around 5
 minutes per subject in average.
 
 
+Annotations
+===========
+
+We provide region-of-interest (RoI) **hand-made** annotations for all images in
+this dataset. The annotations mark the place where the finger is on the image,
+excluding the background. The annotation file is a text file with one
+annotation per line in the format ``(y, x)``, respecting Bob's image encoding
+convention. The interconnection of these points in a polygon forms the RoI.
+Anntations can be loaded using :py:meth:`bob.db.verafinger.File.roi`.
+
+
 Protocols
 ---------