The input images for activations must be of size equal to or greater than [224 224 3].

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my code is:
augmentedTrainset=augmentedImageDatastore(imagesize,...
trainset,'ColorPreprocessing','rgb2gray');
augmentedTestset=augmentedImageDatastore(imagesize,...
testset,'ColorPreprocessing','rgb2gray');
featureLayer = 'fc1000';
trainingFeatures = activations(net, augmentedTrainset, featureLayer, ...
'MiniBatchSize', 39, 'OutputAs', 'columns');
[224 224 3] image size
And I take an error as "The input images for activations must be of size equal to or greater than [224 224 3]."
Why I'm taking this error, how can I fix it?

Accepted Answer

Sai Bhargav Avula
Sai Bhargav Avula on 8 Apr 2020
Edited: Sai Bhargav Avula on 11 Apr 2020
Hi,
Is your image [224 224 3] or of different order?
And try the below code once
augmentedTrainset=augmentedImageDatastore(imagesize,...
trainset);
augmentedTestset=augmentedImageDatastore(imagesize,...
testset);
featureLayer = 'fc1000';
trainingFeatures = activations(net, augmentedTrainset, featureLayer, ...
'MiniBatchSize', 39, 'OutputAs', 'columns');
  6 Comments
aitali hassna
aitali hassna on 11 Apr 2020
yes exactly sir that work for me soo but i didn't py attention that i have some image has 1 channel so the fault that i make 'rgb2gray' in place of 'gray2rgb'
thanks sir
for your help

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