http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Hidden_Watermark 2026-04-21T16:51:16Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Hidden_Watermark&diff=46114&oldid=prev 2023-10-29T22:33:09Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Security |subcat2=Digital watermark |released=2015 }} &#039;&#039;&#039;Hidden Watermark&#039;&#039;&#039; by mchall (Mike Hall) is an open source C# program th...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Security<br /> |subcat2=Digital watermark<br /> |released=2015<br /> }}<br /> <br /> '''Hidden Watermark''' by mchall (Mike Hall) is an open source C# program that embeds a hidden watermark in an image using a blind DWT-DCT approach. Unlike steganographic methods, this hidden watermark is resistant to various forms of attack. Limited to a black and white 32x32 watermark image.<br /> <br /> <br /> Image can be resized, recompressed, blurred, etc and still be able to recover the watermark.<br /> <br /> <br /> <br /> == Links ==<br /> * [https://github.com/mchall/HiddenWatermark Homepage]</div>

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