5 Questions
In the Discrete Cosine Transformation, how many brightness values are transformed into 64 coefficients?
64
How many nonzero coefficients are there in JPEG compression?
8
What is the frequency of occurrence of the JPEG coefficient value -2 in the carrier medium?
40.00%
In the steganogram, what is the value of the JPEG coefficient at the skip position 4?
5
What is the frequency of occurrence of the JPEG coefficient value -3 in Algorithm F3?
30.00%
Test your knowledge of the F5 steganographic algorithm based on the paper "F5—A Steganographic Algorithm High Capacity Despite Better Steganalysis" by Andreas Westfeld. Explore the benefits and properties of the F5 algorithm, its security, and its advantages over existing tools.
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