Sentence examples for by adjusting the quantization from inspiring English sources
When fixing ρ t =16L (corresponding to PFA of 10−6), by adjusting the quantization step Δ, we obtained the watermarked images with the average PSNR of 42 dB, several examples of which are shown in Fig. 4. To assess the watermark imperceptibility, the MSSIM metric is adopted due to its compatibility with the human visual system.
The detection threshold ρ t is chosen based on the resulting probability of false alarm (PFA), and by adjusting the quantization step Δ, the watermarking image is made to meet a given objective image quality index, e.g., peak signal-to-noise ratio (PSNR), the mean structural similarity index (MSSIM) [19].
Based on the block-edge information, this paper proposes an adaptive architecture for adjusting the quantization table and subsequently coding the quantized coefficients with the LLEC.
Adaptively adjusting the quantization steps also enables DWT-AMM to withstand amplitude scaling attacks.
The APQ further enhances the feature distinctiveness by adjusting the user-specific phase quantization intervals.
This is a simplistic analysis because it is not quite right to equate the least-significant bit with the threshold of hearing; instead, we would like to adjust the quantization noise floor to just below the threshold of hearing.
FQ does not translate the PDF; QIM centers the PDF on a quantization interval; LQ uses a likelihood ratio to adjust the quantization regions.
You may want to adjust the quantization of your track to allow for more precise looping.
For example, if you want to loop very small sections (e.g. a single drum beat), you may want to adjust the quantization until you can loop just that beat.
The proposed method can also control target bitrates by adjusting quantization parameters and error rates.
