Making Visible Watermarks More Effective

Re:Making Visible Watermarks More Effective by dtech on Thursday August 17, 2017 @03:07PM (#15039844)

It seems the problem here is that the watermark is transparent, and thus still contains information about the original image.

Similar to how if you want to censor a part of an image, you should always use a single solid color because e.g. a blur can be inverted.

But I guess that would degrade the quality of the watermarked photo too much.

[ Parent | on HN ]

Re:Making Visible Watermarks More Effective by tyingq on Thursday August 17, 2017 @04:08PM (#15040394)

People do sometimes use small, non transparent watermarks.

If they are small enough though, then the person copying just overlays their own. Or uses automated inpainting to approximate what's underneath.

[ Parent | on HN ]

Re:Making Visible Watermarks More Effective by maturz on Friday August 18, 2017 @12:41AM (#15043613)

Example of content aware fill for anyone that hasn't seen it https://www.youtube.com/watch?v=NH0aEp1oDOI

[ Parent | on HN ]

Re:Making Visible Watermarks More Effective by mseebach on Friday August 18, 2017 @05:37AM (#15044786)

The watermark has to overlay the important parts of the image (otherwise, overlaying your own watermark, or simply cropping it out, becomes trivial). It has to be transparent, because the purpose of having the image available in the first place is that potential customers must be able to evaluate it for their purposes before purchasing a license for it. Slapping a solid color bar across it makes that quite difficult.

[ Parent | on HN ]