How to process a folder of Images?

I have this code for a single image..now I have to apply this to a Folder of Images,How do I do it?

I=imread('two.jpg');

figure,imshow(I)

title('Original image')

%% Image adjust

Istrech = imadjust(I,stretchlim(I));

figure,imshow(Istrech)

title('Contrast stretched image')

%% Convert RGB image to gray

Igray_s = rgb2gray(Istrech);

figure,imshow(Igray_s,[])

title('RGB to gray (contrast stretched) ')

%% Image segmentation by thresholding

%use incremental value to run this selection till required threshold 'level' is

%achieved

level = 0.08;

Ithres = im2bw(Igray_h,level);

figure,imshow(Ithres)

title('Segmented cracks')

%% Image morphological operation

BW = bwmorph(gradmag,'clean',10);

figure,imshow(BW)

title('Cleaned image')

BW = bwmorph(gradmag,'thin', inf);

figure,imshow(BW)

title('Thinned image')

Answer 1

[Stephen23]

http://www.mathworks.com/matlabcentral/answers/57446-faq-how-can-i-process-a-sequence-of-files

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F