How to save multiple images using imwrite in matlab ?

How to save multiple images gray format .jpeg using imwrite in matlab ?

image_folder ='E:\gambar_eror' 
filenames = dir (fullfile(image_folder,'*.jpeg'))
total_images = numel(filenames);
%training=[];
for n= 1:total_images;
    f= fullfile(image_folder, filenames(n).name);
    disp(f);
    our_images= imread (f); 
    size (our_images);
    gray=rgb2gray(our_images);
end

Answer 1

[KSSV]

image_folder ='E:\gambar_eror' 
filenames = dir (fullfile(image_folder,'*.jpeg'))
total_images = numel(filenames);
%training=[];
for n= 1:total_images;
    f= fullfile(image_folder, filenames(n).name);
    disp(f);
    [FILEPATH,NAME,EXT] = fileparts(f) ; 
    our_image= imread (f); 
    gray=rgb2gray(our_image);
    filename = [image_folder,'\',NAME,'_gray',EXT] ; 
    imwrite(gray,filename)
end

[Armylia Dewi]

how do i see the result of saving a jpeg image file?

[KSSV]

The images with names which already existing and appened by _gray should be in the folder....NO?

[Armylia Dewi]

oh i see right. already in the same folder.

may i ask the meaning of

 [Filepath,name,ext]= fileparts(f);

and

 filename =[image_folder,'\',name,'_gray',ext];

[KSSV]

You can read the documentation. Read about those functions.

fileparts: This gives, the path of the file, name of the file and extension of the file.

[]: This will join the strings. This line, creates the image name.

[Armylia Dewi]

Okay. Thankyou so much for the answer and discussion.