If TF uses an absolute value for the brightness and PyTorch/PIL a relative one, you could try to map the TF value by dividing it with 255.
However, I’m a bit confused by the TF description, which claims:

The value delta is added to all components of the tensor image. image is
converted to float and scaled appropriately if it is in fixed-point
representation, and delta is converted to the same data type. For regular
images, delta should be in the range [0,1), as it is added to the image in
floating point representation, where pixel values are in the [0,1) range.

Also the example uses a delta value of 0.1, so I’m unsure where the 52 comes from.