DAG Network loading as Struct

I am trying to use a nerual network on a set of data. This is my code:

%This code is to create data to analyse in another program to test the performance of the NN.
clear;
clc;
%Open files
testfiledir = 'Z:\eee_biophotonics1\Shared\SPOT dataset (Training data)\Testing Images\123 images on 456 network\OCT';
matfiles = dir(fullfile(testfiledir, '*.tif'));
nfiles = length(matfiles); %finds length of file
data  = cell(nfiles);
for i = 1 : nfiles
   fid = fopen( fullfile(testfiledir, matfiles(i).name) ); %retrieves specific file
   net = load('net_456.mat'); % This loads the network back into MATLAB
   result = semanticseg(fid,net); % This segments an image "fid" using the network
   filename='Z:\eee_biophotonics1\Shared\SPOT dataset (Training data)\Testing Images\123 images on 456 network\nn segmented';
   save(result,'%d',i,'-tif');
   fclose(fid);
end

However this error comes up:

Error using semanticseg

Expected net to be one of these types:

SeriesNetwork, DAGNetwork, dlnetwork

Instead its type was struct.

Error in semanticseg>iCheckNetwork (line 723)

validateattributes(net, {'SeriesNetwork', 'DAGNetwork', 'dlnetwork'}, ...

Error in semanticseg>iParseInputs (line 416)

iCheckNetwork(net);

Error in semanticseg (line 244)

params = iParseInputs(I, net, varargin{:});

Error in SPOTimageconversion_123_456 (line 12)

result = semanticseg(fid,net); % This segments an image "fid" using the network

Answer 1

[Rachel Ball]

remove: net = load('net_456.mat')

In the current folder pane in matlab, select the network you want and click on it, this should run load("x.mat") in the console

It will then show you the name of the DAG network insde details pane, Put this name in the semanticseg function