Undo/Revert Resize and CenterCrop transformations

1

Hi,
after I use the transformations Resize and CenterCrop I would like to go back to the original image, with the integer RGB values (in [0,255]) for the channels. How can I do this?

I need it because I have to open it with opencv, that only accepts this format to correctly open the image.

Thanks

2

Resize and CenterCrop do not normalize the image, so the pixel values should still be in the same range.
You can hardly undo a cropping operation, as you lose information during the crop.

If you want to undo the normalization, you could multiply with the same stddev and add the mean to the tensor.