Hello fellas,
What is the purpose of find mean and std, is from each image or whole dataset, what is use for, how to find it? not clear yet and i have see that is a must in all models or am I wrong? thanks a lot
Normalizing the data is often beneficial and the standardization or whitening of the data by subtracting the mean and dividing by the stddev shows commonly a superior convergence of the model. I’m sure there might be exceptions, but it’s quite the standard now. I couldn’t find a quick reference but am sure that Bishop explains it in Pattern Recognition and Machine Learning.
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