It's trivial to cause a neural hash non-match-- either imperceptibly with a little noise, or by adding an overlay on the image. If you downsample and quantize

It's trivial to cause a neural hash non-match-- either imperceptibly with a little noise, or by adding an overlay on the image. If you downsample and quantize an image before sha256ing it you get a bit of robustness to accidental false-negatives. While both schemes are trivially bypassable.