Did you mean steganographic? Because stenography is a rather different subject — see https://www.merriam-webster.com/dictionary/stenography https://www.merria

Did you mean steganographic? Because stenography is a rather different subject — see https://www.merriam-webster.com/dictionary/stenography https://www.merriam-webster.com/dictionary/stenography That said, steganographic techniques are not robust in the face of alteration — they’re meant to be kept hidden and undetectable, so they are very fragile if the image is modified in even the slightest way. There are more robust watermarking methods, but they are definitely not hidden or difficult to detect.