akshaybahadur21/Autopilot

About the Lambda layer

emredo opened this issue · 1 comments

model.add(Lambda(lambda x: x / 127.5 - 1., input_shape=(image_x, image_y, 1)))

What does lambda layer actually do? Other words, why is it divided by 127.5 and -1 ?

I noticed that the layer is normalising the pixel values between -1 and 1.