Incorporation of perceptually adaptive QIM with singular value decomposition for blind audio watermarking

EURASIP Journal on Advances in Signal Processing

Table 2 Statistics of the measured SNRs and ODGs, along with the payload capacities

Watermarking schemes	Specifications	SNR	ODG	Payload (bps)
Adaptive DWT-SVD	Reference [22]	23.872 [±2.337]	−1.030 [±1.411]	45.56^a
SVD-DCT	Reference [17]	29.679 [±1.447]	−1.053 [±1.563]	43^a
LWT-SVD	Reference [28]	22.025 [±2.763]	−0.400 [±1.036]	170.67^a
The proposed scheme	DWPT-SVD-adaptive QIM	20.327 [±0.375]	−0.037 [±0.182]	139.97
The proposed scheme	+Enhancement 1	20.498 [±0.402]	−0.034 [±0.180]	139.97
The proposed scheme	+Enhancements 1 and 2	20.889 [±0.331]	−0.062 [±0.215]	139.97

The data in each cell is interpreted as ‘mean [±standard deviation]’. ^aThese numbers will drop if the watermarking methods need to allocate extra segments for frame synchronization.