Save multiple image automatically
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image_folder = 'F:\kuliah\semester6\TA2\mencoba';
outfolder = 'F:\kuliah\semester6\TA2\mencoba\hasil';
if ~isdir(outfolder); mkdir(outfolder); end
load mri %I presume it has the variable map in it
fileinfo = dir(fullfile(image_folder, '*.jpg'));
filenames = fullfile({fileinfo.folder}, {fileinfo.name});
total_images = numel(filenames);
for n = 1 : total_images
thisfile = filenames{n};
[~, basename, ext] = fileparts(image_folder);
citra = imread(thisfile);
V = squeeze(citra);
fprintf('processing %s\n', basename);
citra3 = montage(reshape(V,size(citra)), map, 'Indices', 3);
outfile = fullfile(outfolder, [basename 'coba' ext]);
saveas(citra3, outfile);
end
A folder containing many images has been read, but only one output is stored. I have been helped by Mr.Walter Roberson, but I still can't solve the problem of how to save multiple images from the output of the matlab process.
采纳的回答
Bjorn Gustavsson
2021-2-24
You simply have to generate a sequence of unique filenames to save to. Something like this:
outfile = fullfile(outfolder, sprintf('%s-coba-%03d.%s',basename,n,ext]);
saveas(citra3, outfile);
That way you'll generate filenames of the type: basename-coba-001.ext - I replaced the whitespaces in the filename with '-', because I prefer to have dashes instead, you can switch back. The %03d is just to give you zero-padded numbers incrementing with your loop-variable n.
HTH
9 个评论
Frisda Sianipar
2021-2-24
i try but still same. one image is stored, even though there are 2 processed images.
Bjorn Gustavsson
2021-2-24
That is most likely due to the way you extracts the image-file-names:
fileinfo = dir(fullfile(image_folder, '*.jpg'));
filenames = fullfile({fileinfo.folder}, {fileinfo.name});
This in my opinion becomes rather complex to handle with combining different information from different cells to generate filenames.
When I do this I typically do:
files = dir(fullfile(image_folder, '*.jpg'));
for iFiles = 1:numel(files)
thisfilename = fullfile(files(iFiles).folder,files(iFiles).name);
citra = imread(thisfilename);
% etc
end
Rik
2021-2-24
Based on the code you posted in your question, the processed images should be in that hasil folder. Also, none of the files in that folder could be from the code Bjorn posted. If you change code, please post what you did.
Frisda Sianipar
2021-2-24
编辑：Rik
2021-2-24
it is have an error, could you help me?
Rik
2021-2-24
You were the one who commented out the line where the basename variable was created. You should make sure you create it again.
Bjorn Gustavsson
2021-2-24
You have to start reading the error-messages. It says that you have no function or variable basename. In your current version you have cut out the line:
[~, basename, ext] = fileparts(image_folder);
That was where you created that variable. Now you have to think about what you want for that variable in your current version.
Only you can decide that.
Frisda Sianipar
2021-2-24
编辑：Rik
2021-2-24
sorry if it's a hassle, this is my first time using matlab
Undefined function or variable 'n'.
Think about your code. What are you doing and why? Have you read the documentation for the functions you are using?
If you read the latest error message: "Undefined function or variable 'n'." Can you see where you define n? What was that line doing? What was the reason you commented it?
If you have trouble with Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks).
Also, feel free to put multiple things in 1 comment, instead of letting me merge your comments.
Frisda Sianipar
2021-2-24
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