Two question about watermarking

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life24
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Two question about watermarking

Post by life24 » 2016-06-14T04:30:13-07:00

Hello,
--Why is the watermark embedded into image instead of just inserting it into the file header?
2- What is the drawback of inserting additional information into images?(in watermarking)
Thanks

snibgo
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Re: Two question about watermarking

Post by snibgo » 2016-06-14T08:35:59-07:00

I don't see how a watermark can be inserted into a file header. Most file formats don't a have a field for watermarks.

A watermark changes pixel values, so it makes processing the image more difficult.
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