Here you have jenna.jpg, I nice girl I met online. This photo is the reference an is not digitally watermarked
The other photos are the same picture but watermarked, each one with a different strength.
Level 1 is less visible but less durable
Level 4 is more visible but more durable.
I inserted a Transaction code "69696969"
You can read This transaction code with in several ways:
If you have Photoshop CS4, use the Digimarc plugging.
you can also use the executable I am posting, and run read watermarks from context menu in explorer
(if you don't trust me, what I fully understand, you can download it free from Digimarc site.)
I removed in all images all metadata, like EXIF, XMP, Photoshop meta, etc.. even the thumbnail so it will not be an
issue when comparing the files.
As you will be able to see, digitally watermarking CHANGES the color of pixels of the image.
feel free to crop, resize, etc and check for yourself if you can have get watermarks removed without destroying the
picture...
In my tests, long time ago, with a 1200dpi wax color printer and a 1200 dpi scanner, the digital watermarked survived
after I printed the photo and scanned it.
Any doubt, fell free to reply please... After all this is ALSO a discussion group :-)
With all respect,
--
NottyBrother
=ybegin line=128 size=580 name=Digimarc Reader for Images.exe.par2
=yend size=580 crc32=2a93464a
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