I wanted to build a more secure image redaction tool but not resort to black (which is I suspect the best way to redact)<p>So instead of blurring, this tool first scales down the image, then scrambles pixels randomly, and then blurs. This should (disclaimer: not a scientist) make it impossible to revert information back to its original state.<p>It should also prevent uncensored characters giving away the blurred shape of censored characters as those will be randomly scrambled.<p>Additionally the resolution of the blurred version of the image will be lowered when large parts of the image are redacted.<p>I thought I'd post it here on HN because I'm genuinely interested in if my assumptions are correct.