How to change image size from 224 x 224 x 1 to 224 x 224 x 3
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abdullah al-dulaimi
am 4 Nov. 2022
Kommentiert: Walter Roberson
am 7 Dez. 2023
i have images with 224 x 224 x 1 size i want to convert it to 224 x 224 x 3
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Kevin Holly
am 4 Nov. 2022
Img = rand(224,224,1);
imshow(Img)
new(:,:,1) = Img;
new(:,:,2) = Img;
new(:,:,3) = Img;
imshow(new)
size(Img)
size(new)
2 Kommentare
Kevin Holly
am 4 Nov. 2022
Bearbeitet: Kevin Holly
am 4 Nov. 2022
folder = uigetdir;
files = dir(fullfile(folder,'*.png'));
for ii = 1:length(files)
grayImage = imread(fullfile(folder,files(ii).name));
rgbImage = cat(3, grayImage, grayImage, grayImage);
imwrite(rgbImage,[fullfile(folder,files(ii).name) '_rgb.png'])
end
Weitere Antworten (1)
Walter Roberson
am 4 Nov. 2022
I recommend that you consider using an imageDatastore followed by an augmentedImageDatastore -- the augmented store can automatically resize your images and can automatically convert to RGB or grayscale.
2 Kommentare
Walter Roberson
am 7 Dez. 2023
unzip('MerchData.zip');
imds = imageDatastore('MerchData', ...
'IncludeSubfolders',true, ...
'LabelSource','foldernames');
augds = augmentedImageDatastore([224 224], imds, 'ColorPreprocessing', 'gray2rgb');
[imdsTrain,imdsValidation] = splitEachLabel(augds,0.7);
and so on.
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