The perceptual hashes are specifically designed to correlate images that are visually similar while not being exactly alike, even when the colors are altered. S

The perceptual hashes are specifically designed to correlate images that are visually similar while not being exactly alike, even when the colors are altered. See: https://blog.cloudflare.com/the-csam-scanning-tool/ https://blog.cloudflare.com/the-csam-scanning-tool/