I am finding the following error while running this code in MATLAB R2021a. Please help.

%% Golomb coding/decoding for grayscale images

I=imread('N17.jpg');

I=double(I);

[size_x,size_y]=size(I);

I_dec=zeros(size_x,size_y); %decoded image will be stored in this matrix

m=randi(size_x,size_y,[1,max(max(I(:,:)))]); % generate a random set of coding parameters

% Encoding/Decoding for image

for i=1:1:size_x

for j=1:1:size_y

x = golomb_enco(I(i,j),m(i,j));

I_dec(i,j) = golomb_deco(x, m(i,j));

end

end

% Test to verify correct decoding

if isequal(I_dec,I)

fprintf('Decoding successful');

end

Error using randi

Size inputs must be scalar.

Error in golombexec (line 40)

m=randi(size_x,[1,max(max(I(:,:)))],size_y); % generate a random

set of coding parameters

Answer 1

[Cris LaPierre]

https://www.mathworks.com/help/matlab/ref/randi.html

It looks like MATLAB has determined you are trying to use this syntax:

X = randi(imax,sz1,...,szN)

Consult the documentation if that is not the syntax you intended to use.