evaluation of segmentation image
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I have this program that the evaluation of image segmentation, but I just can not run this program.
function [val] = IntraInter_LN(Imseg,Imori)
% function [val] = IntraInter_LN(Imseg,Imori)
% Calcul du critère d'évaluation Intra-Inter de Lévine & Nazif
% Imseg : matrice correspondant à l'image segmentée avec des valeurs allant de 1 à n pour les n régions segmentées
% Imori : matrice correspondant à l'image originale
%
% Utilitaires pour l'évaluation de la segmentation d'images
% Toolbox matlab (version 5.3)
%
% (c) Laboratoire de Vision et Robotique (UPRES EA 2078)
% ENSI de Bourges - Université d'Orléans
%
% Sébastien Chabrier : sebastien.chabrier@ensi-bourges.fr
%
% Si vous utilisez cette toolbox, veuillez citer ce papier svp.
%
%S. Chabrier, B. Emile, C. Rosenberger, H. Laurent,
%"Unsupervised performance evaluation of image segmentation",
%Special Issue on Performance Evaluation in Image Processing,
%EURASIP Journal on Applied Signal Processing, pages 1-12, 2006.
if (min(min(Imseg))==0)
Imseg=double(Imseg)+1;
end;
NBclass=double(max(max(Imseg)));
nbre2lig=size(Imori,1);
nbre2col=size(Imori,2);
% statistiques sur les l'image originale
moy=zeros(NBclass,1);
cpt=zeros(NBclass,1);
var=zeros(NBclass,1);
for i=1:nbre2lig
for j=1:nbre2col
moy(Imseg(i,j))=double(moy(Imseg(i,j)))+double(Imori(i,j));
var(Imseg(i,j))=double(var(Imseg(i,j)))+double(Imori(i,j))*double(Imori(i,j));
cpt(Imseg(i,j))=double(cpt(Imseg(i,j)))+1;
end;
end;
for i=1:NBclass
if (cpt(i)~=0)
moy(i)=moy(i)/cpt(i);
var(i)=var(i)/cpt(i);
end;
var(i)=var(i)-moy(i)*moy(i);
end;
% disparite intraclasse
aux1=0.0;
for i=1:NBclass
aux1=aux1+(4.0/(255.0*255.0))*var(i);
end;
aux1=aux1/NBclass;
% disparite interclasse
aux2=0.0;
cpt2=0;
for i=1:NBclass
aux=0.0;
for j=1:NBclass
if (i~=j)
aux=aux+abs(moy(i)-moy(j))/512;
cpt2=cpt2+1;
end;
end;
aux2=aux2+aux;
end;
if (cpt2>0)
aux2=aux2/cpt2;
end;
val=(1+aux2-aux1)/2;
disp(val)
0 Commenti
Risposta accettata
Walter Roberson
il 17 Ago 2011
What happens when you try to run it?
What data class should the input images be? Should they be grayscale (2 dimensional) or RGB (3 dimensional) ?
6 Commenti
Walter Roberson
il 29 Ago 2011
Please show the different files and their contents, including indicating the file name for each of them.
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