I was reading the doc on get_transforms. It seemed setting flip_vert=True will result in 8-rotations. How do I configure this if I only want 4-rotation without any flipping. E.g. let say if i want to identify text strings, flipping them left-right will result in unreadable text.
The solution I found is not good enough. It may not be “statistically” correct cos it is tossing the dice 4 times and apply the results (probably in sequence). I don’t bother to prove this mathematically, performing 4 transforms is a waste computationally.