% -*- texinfo -*-
% @deftypefn {Function File} @var{total}= bwarea(@var{bw})
% Estimates the area of the 'on' pixels of @var{bw}.
% If @var{bw} is a binary image 'on' pixels are defined as pixels
% valued 1. If @var{bw} is a grayscale image 'on' pixels is defined
% as pixels with values larger than zero.
% This algorithm is not the same as counting the number of 'on'
% pixels as it tries to estimate the area of the original object
% and not the image object.
% @end deftypefn