Unable to perform assignment because the size of the left side is 1-by-512 and the size of the right side is 1-by-3. Error in A5 (line 43) empty(position,:) = [xn yn Image(xn,yn)]; PLEASE HELP ME TO SOLVE THIS ERROR

clc;

close all;

%% Read Input Image - peppers_gray

Oimage=imread('peppers_gray.tif');

[M,N]=size(Oimage);

Image=Oimage(:,1:N/2);

figure(1);imshow(Image);

title('Input Image - Peppers','Color','red');

%% Selecting Seed Pixel from Input Image

figure(2),

imshow(Image, []);

[y,x,button]= ginput(1);

y = round(y);

x = round(x);

[M,N]=size(Image);

%%

%[M,N]=size(Image);

%Image=Oimage(:,1:N/2);

threshold = 13

segmentedimage = zeros(size(Image));

% 8-neighbors

nhood = [-1 -1; -1 0; -1 1; 0 -1; 0 1; 1 -1; 1 0; 1 1];

pdist = 0;

seed = Image(x,y);

reg_size = 1;

position = 0;

% some space to save co-ordinates and values of neighbors

empty = zeros(M,N);

while (pdist<threshold && reg_size<numel(Image))

for ix = 1:8

% gives the co-ordinates of the 8 neighbors

xn = x + nhood(ix,1);

yn = y + nhood(ix,2);

ins=(xn>=1)&&(yn>=1)&&(xn<=M)&&(yn<=N);

if(ins&&segmentedimage(xn,yn)==0)

position = position+1;

empty(position,:) = [xn yn Image(xn,yn)];

segmentedimage(xn,yn)=1;

end

end

% calculate the mean of the 8 connected pixel and and add the

% co-ordinates into x,y

dist = abs((empty(1:position,3)) - (seed));

[pdist, index] = min(dist);

segmentedimage(x,y)=2; reg_size=reg_size+1;

seed= (seed*reg_size + empty(index,3))/(reg_size+1);

x = empty(index,1); y = empty(index,2);

%delete the empty stuff

empty(index,:) = empty(position,:); position=position - 1;

end

segmentedimage = segmentedimage > 1;

[darova]

Any connection between these lines?

empty = zeros(M,N);
empty(position,:) = [xn yn Image(xn,yn)];