I had a very noob question:
I want to change my tensor shape from [5, 3, 84, 84] to [5, 1, 28, 28]
That is, change image size from 84x84 to 28x28, and convert RGB to GrayScale.
P.S. I don’t want to make use of transforms, as I want to keep the original tensor [5, 3, 84, 84] for a different operation.