whats wrong with this code when it read images from folder it gives me the following error. Error in Untitled8 (line 14) filename2 = strrep(fil​ename,path​name);

clear all;
clc;
close all;
[filenameList, pathnameList] = uigetfile(...
    {'*.jpg;*.tif;*.png;*.gif;*.bmp','All Image Files'},'mytitle',...
    'MultiSelect', 'on', ...
'c:/DatasetResultsNew/');

pathname = pathnameList;

for iFile=8:10  % 1:28 %check out here
    
    filename = filenameList{iFile-7};
    filename2 = strrep(filename,pathname);
    fprintf('Processing image %s\n', filename);

im_GroundTruth = imread([pathname,filename]); % object=1; backgroud = 0;
im_GroundTruth(im_GroundTruth>0)=255;
im_segmentaion = im2uint8(imread([pathname,filename2])); % object=1; backgroud = 0;
Conf = confusionmat(im_GroundTruth(:),im_segmentaion(:));
recall = Conf(2,2)/sum(Conf(2,:))*100;
precision = Conf(2,2)/sum(Conf(:,2))*100;
f_measure = 2*recall*precision/(recall+precision);

metricsMatrix(iFile).recall=recall;
metricsMatrix(iFile).precision=precision;
metricsMatrix(iFile).f_measure=f_measure;


end

[Stephen23]

What do you expect this to do?:

filename2 = strrep(filename,pathname);

The strrep help clearly shows that the function requires three input arguments, but you only have two. It is not clear what your invented syntax is supposed to do, but I strongly suspect that strrep will not be the correct tool for the job.

Please explain what you expect that line of code to do.

[Arshad Ali]

i want to read all images from the folder to compare the mask which i created with the given mask to find precision, recall and f-measure. this code will find precision, recall and f-measure and create a matrix for every record

[Arshad Ali]

filename2 = strrep(filename,'file_1_', 'newfile_');

i change it but now i am getting this error

Error using confusionmat (line 52)

G and GHAT need to be the same type.

Error in Untitled8 (line 20)

C = confusionmat(im_GroundTruth(:),im_segmentaion(:));