% ERFILL  Fill extremal region
%  MEMBERS=ERFILL(I,ER) returns the list MEMBERS of the pixels which
%  belongs to the extremal region represented by the pixel ER.
% 
%  The selected region is the one that contains pixel ER and of
%  inensity I(ER).
%
%  I must be of class UINT8 and ER must be a (scalar) index of the
%  region representative point.
%
%  See also MSER().