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Exact(10)
Watermark bits are embedded into the blocks of non-overlapped wavelet coefficients of the cover image by quantizing the two maximum coefficients of the corresponding block.
The other is that in order to exploit better redundancy, two largest and two smallest pixels are modified simultaneously so that at most 4 data bits are embedded into a sub-block.
For reversible data hiding, the histogram-based difference expansion (DE) is one family of the generic methods where secret bits are embedded into an image by DE on prediction error.
Thirdly, the shuffled message bits are embedded into the valid quantized DCT coefficients using IA-LSB steganography.
After performing DCT on each block and quantizing the DCT coefficients, message bits are embedded into the quantized DCT (qDCT) coefficients.
In the first part, bits are embedded into each valid coefficient, and in the second part, bits are embedded (shown in Figure 1).
Similar(50)
These files were sampled at a rate of 44.1 kHz, and 25 bits were embedded into a 5 sec sample of the audio signal.
The watermark bits were embedded into the audio signals using QIM, of which the quantization steps were adaptively determined according to the statistical properties of the involved DWT coefficients.
Finally, the watermark bit is embedded into the average value of modulus of the low-order wavelet moments.
Finally, the watermark bit is embedded into the average value of modulus of the low-order pseudo-Zernike moments.
To apply angle quantization, each watermark bit is embedded into two sets of the original signal.
More suggestions(17)
bits are split into
bits are translated into
bits are hashed into
bits are organized into
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bits are encoded into
bits are grouped into
bits are hidden into
bits are formed into
bits are separated into
bits are gathered into
bits are linked into
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bits are segmented into
bits are inserted into
bits are placed into
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com