Image Segmentation and image saving

I want to read all the images in the folder, then segmented and stored in a new folder. But when the segmentation process is only one image running, everybody help me? Thank you very much.

image_folder = 'C:\Users\ADMIN\Matlab\Implementasi';

outfolder = 'C:\Users\ADMIN\Matlab\Implementasi\cobaku';

if ~isdir(outfolder); mkdir(outfolder); end

figure, fig1=imshow(citra);

files = dir(fullfile(image_folder, '*.jpg'))

%change to grayscale

grayimg = rgb2gray(citra);

figure, fig2=imshow(grayimg);

%change to green channel

green_channel = citra(:,:,2);

figure, fig3=imshow(green_channel);

%change to CLAHE (Contrast Limited Adaptive Histogram Equalization)

CLAHE = adapthisteq(green_channel);

figure, fig4=imshow(CLAHE);

ER = edge(CLAHE, 'canny');

EG = edge(CLAHE, 'canny');

EB = edge(CLAHE, 'canny');

anyedge = ER | EG | EB;

figure, fig5=imshow(anyedge)

size(fig5)

load mri %I presume it has the variable map in it

for iFiles = 1:numel(files)

thisfilename = fullfile(files(iFiles).folder,files(iFiles).name);

[~, basename, ext] = fileparts(image_folder);

citra = imread(thisfilename);

V = squeeze(citra);

fprintf('processing %s\n', basename);

fig = figure;

citra3 = montage(reshape(V,size(citra)), map, 'Indices', 3);

outfile = fullfile(outfolder, sprintf('%s-coba-%03d.jpg', basename, iFiles));

saveas(citra3, outfile);

end