That kind of steganographic encoding is quite advanced and would involve the use of applications or downloads which we vowed not to do this time around.
So - the clue is you don't need to install any special software to process anything to see the clue which is in plain sight.
Here is a comment from a trusted source, but what the heck does it all mean????
"The JPG file was probably processed with steganographic algorithms which embed payload bits into the Least Significant Bits (LSBs) of quantized DCT coefficients, before the Huffman encoder is applied. This steganographic technique causes the Pairs-of-Values (PoV), in normal images distributed unevenly throughout the image, to be evenly distributed, which can be detected using Chi-square test. Also, window smoothing by moving average is implemented on Chi-square test results, in order to improve accuracy. "
Yes your involvement has made the challenge3 a real tough one, but still interesting and inspiring. We all are at the edge of our seats and enjoying this excitement.
this is the first time i actually got involved - i wasn't part of the first two. the first one was too easy, the second was fun and challenging, but I jumped in to make the third one the toughest.
the answer is out there in plain sight - just look carefully.
Shally Steckerl's Comments
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I think Rushit is onto something....hope someone cracks this soon as Mike and I need a 3rd playmate for the SourceCon sandbox
That kind of steganographic encoding is quite advanced and would involve the use of applications or downloads which we vowed not to do this time around.
So - the clue is you don't need to install any special software to process anything to see the clue which is in plain sight.
Sarah likes to network but not in public places.
Give another Clue:-)
"The JPG file was probably processed with steganographic algorithms which embed payload bits into the Least Significant Bits (LSBs) of quantized DCT coefficients, before the Huffman encoder is applied. This steganographic technique causes the Pairs-of-Values (PoV), in normal images distributed unevenly throughout the image, to be evenly distributed, which can be detected using Chi-square test. Also, window smoothing by moving average is implemented on Chi-square test results, in order to improve accuracy. "
Good Afternoon.
Yes your involvement has made the challenge3 a real tough one, but still interesting and inspiring. We all are at the edge of our seats and enjoying this excitement.
Wish me best of luck..... :)
Regards,
Satya. C. N.
We are trying our level best to crack this one... a tough one though :-)
the answer is out there in plain sight - just look carefully.
Third one is really very tough one.
https://v-me.vonage.com/shallysteckerl
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