www.gusucode.com > 用于人脸识别和人脸定位的主动形状模型(asm)matlab工具箱 > asm toolbox\GetBeforeAfterPts.m
%%%%%%%%%%%%%%%%%%%%%%%%%% %(c) Ghassan Hamarneh 1999 %%%%%%%%%%%%%%%%%%%%%%%%%% function [pt1,pt2]=GetBeforeAfterPts(index,ContoursEndingPoints); %function [pt1,pt2]=GetBeforeAfterPts(index,ContoursEndingPoints); if index==1 pt1=ContoursEndingPoints(1); pt2=2; elseif index==ContoursEndingPoints(1) pt1=ContoursEndingPoints(1)-1; pt2=1; elseif index==ContoursEndingPoints(end) pt1=ContoursEndingPoints(end)-1; pt2=ContoursEndingPoints(end-1)+1; elseif ismember(index-1,ContoursEndingPoints) tmp=find(index-1==ContoursEndingPoints); pt1=ContoursEndingPoints(tmp+1); pt2=index+1; elseif ismember(index,ContoursEndingPoints) pt1=index-1; tmp=find(index==ContoursEndingPoints); pt2=ContoursEndingPoints(tmp-1)+1; else pt1=index-1; pt2=index+1; end