I’m going to normalize pixels of grayscale MRI data to [0,1], but when I apply keras.layers.Rescaling(1./255) to my data All of them become completely black images , should I manually define a function to solve this?
Thanks for your help

I was trying to preprocess and some MR images to use pre-trained models by keras.layers.Rescaling(1./255) and when I visualized them, they were all black images