gusucode.com > 连通体搜索源码程序 > 连通体搜索源码程序/find_components/find_components/largest_component.m
function C = largest_component (A) %LARGEST_COMPONENT finds the largest connected component in an image. % C = largest_component (A) returns an image C whose entries are equal to 1 % if A(i,j) is in the largest component of A, or zero otherwise. In case of % a tie, the largest component with the largest label A(i,j) is returned. % If still tied, the component the smallest index i is returned (where i is the % linear index of A(i) for all entries in the component). % % Example: % % A = [ 1 2 2 3 % 1 1 2 3 % 0 0 1 2 % 0 1 3 3 ] % C = largest_component (A) % % returns C = [ % 0 1 1 0 % 0 0 1 0 % 0 0 0 0 % 0 0 0 0 ] % % See also FIND_COMPONENTS, FIND_COMPONENTS_EXAMPLE, DMPERM % Copyright 2008, Tim Davis, University of Florida % return the new binary image with just the largest component C = zeros (size (A), class (A)) ; C (find_components (A)) = 1 ;