How to save multiple crop picture with output picture name is same as input picture name?

Hi, I am really new in this Matlab coding. My problem is I try to create a coding with will read a multiple numbers of picture inside a folder and crop it into multiple small picture and save it on other folder. However, I am stuck on creating a save crop picture which is the retain some name from input picture.

For example: Input : PolyU_002_S_02 PolyU_003_S_03 PolyU_002_S_04

After the cropping and save, Output: crop_002_S_02 crop_002_S_02 crop_002_S_02

Here is my latest coding which still have some error

if true
file = dir('C:\Program Files\MATLAB\R2017a\bin\FYP\*.bmp');

out = 'C:\Program Files\MATLAB\R2017a\bin\FYP\corp';

src = 'C:\Program Files\MATLAB\R2017a\bin\FYP\';

folder = dir([src '*.bmp']);

input = {folder.name}';

c = input;

for i = 1:length(folder)

    fname = strcat('C:\Program Files\MATLAB\R2017a\bin\FYP\',file(i).name);

    a = imread(fname);

    b = imcrop(a,[140,65,150,150]);

    c{i} = strrep(file(i).name, 'PolyU', 'crop');

    imwrite(b,[out c{i}],'.bmp');

end end

Thanks for the help!

Answer 1

[Rik]

There are multiple things you could improve in this code, but replacing the next two lines with the subsequent two should solve your issue.

%replace this:
c{i} = strrep(file(i).name, 'PolyU', 'crop');
imwrite(b,[out c{i}],'.bmp');
%with this:
c{i} = strrep(fname, 'PolyU', 'crop');
imwrite(b,c{i});

[Muhammad Bariq Azmi]

It works! thanks! Mind to tell me on how I could improve this coding beside on how save the crop picture on different folder, sir?