% 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().