Hey there! …again 



 Carsten_Ditzel:


Does the re-scaling into the unit interval happen automatically?
what changes if I rescale the inpurt manually before?
what if my input has negative values?




From the docs, yes -  if it’s a PIL image or numpy array with the datatype uint8. Otherwise not. Read here 19 for more info
Depends on how you rescale them. It is possible that they are scaled twice if your manual scaling outputs something that fits the criteria in the bullet point above.
The pretrained networks in pytorch expect a value from 0 - 1 as you quoted in the OP. If you give them any other range, negative values, scale them twice or whatever they will just work poorly. It doesn’t mean that you have to work with the range of 0 - 1, but you’d have to retrain the network if any other scale is desired

:D! GL