I am working on an IEEE paper. For which i searched and found a coe for LBG algorithm. But code showing some error. First of all i am not understanding its first error. It continue to show errors. .tiff is not attaching please use any image.

clc

clear all

close all

%*****************************************

tic

block_size=8;

inp=imread('Lena.tiff');

inp=rgb2gray(inp);

[ro,co]=size(inp);

Np=(ro/block_size)*(co/block_size); % number of Xi

Nc=Np/2;

L=block_size^2;

C=randi([0,255],Nc,L);

X=zeros(Np,L);

k=1;

for i=1:block_size:ro

    for j=1:block_size:co

        tem=inp(i:i+block_size-1,j:j+block_size-1);

        X(k,:)=tem(:);

        k=k+1;

    end

end

for j=1:L

    min_X=min(X(:,j));

    max_X=max(X(:,j));

    C(C(:,j)<min_X,j)=min_X;

    C(C(:,j)>max_X,j)=max_X;

end

lim=50;

for m=1:lim

U=zeros(Np,Nc);

for i=1:Np

    for j=1:Nc

        T=(X(i,:)-C(j,:));

        dis(1,j)=sqrt(T*T');

    end

    coo=find(dis==min(dis));

    U(i,coo(1,1))=1;

end

fg=C;

for j=1:Nc

    sig=0;

    Usig=sum(U(:,j));

    if Usig~=0

        for i=1:Np

            Ind=X(i,:).*U(i,j);

            sig=sig+Ind;

        end

        C(j,:)=sig/Usig;

    end

end

dif=fg-C;

deff(m)=sqrt(sum(sum(dif.^2)));

end

C=round(C);

i=1:lim;

plot(i,deff)

% constructed_image=zeros(ro,co);

% j=1;

% k=1;

% for i=1:Np

% tem=reshape(X(i,:),block_size,block_size);

% constructed_image(j:j+block_size-1,k:k+block_size-1)=tem;

% k=k+block_size;

% if k>co

% j=j+block_size;

% k=1;

% end

% end

% imshow(constructed_image,[])

[r,c]=find(U==1);

Xx=zeros(size(X));

for i=1:Np

    Xx(r(i),:)=C(c(i),:);

end

constructed_image=zeros(ro,co);

j=1;

k=1;

for i=1:Np

    tem=reshape(Xx(i,:),block_size,block_size);

    constructed_image(j:j+block_size-1,k:k+block_size-1)=tem;

    k=k+block_size;

    if k>co

        j=j+block_size;

        k=1;

    end

end

figure;

imshow(constructed_image,[])

[Image Analyst]

State which question you want to keep and which we should delete. Is there any difference between the two?

[Eduardo Márquez]

Receive the error in the code or algorithm?

The algorithm runs fine in my computer, but the desired results appear.