Grey Scale -> RGB images from augmentedImageSource
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Hi, I would like to convert grey scale images to [227 227 3]. I'm able to adjust the size using "auimds = augmentedImageSource(imageSize, trainingImages); " but I'm having trouble with converting to RGB (for use with Alex Net).
I've tried:
%grayimg=repmat(grayimg, 1, 1, 3);
%auimds = cat(3, auimds, auimds, auimds);
%auimds(:,:,[1 1 1]);
%RGB = auimds(3, auimds, auimds, auimds);
and the grey2rgb() method
Any suggestions?
2 Kommentare
Aditya Patil
am 16 Nov. 2020
Can you elaborate on the issue you are facing? Share any errors that were shown, and also share the output of the "version" command.
Antworten (1)
Subhadeep Koley
am 16 Nov. 2020
You can use the ColorPreprocessing Name-Value pair of augmentedImageSource to achieve what you want.
imageSize = [227 227 3];
auimds = augmentedImageSource(imageSize, trainingImages, 'ColorPreprocessing', 'gray2rgb'); % 'trainingImages' is your image datastore
Also if your using MATLAB R2018a or above, you might want to use augmentedImageDatastore instead of the augmentedImageSource due to the Compatibility Considerations.
imageSize = [227 227 3];
auimds = augmentedImageDatastore(imageSize, trainingImages, 'ColorPreprocessing', 'gray2rgb'); % 'trainingImages' is your image datastore
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