imperceptibility

To achieve this property of imperceptibility to humans but deception for machine classifiers, the perturbation added to a valid example should take the perturbed example just across a decision boundary of the machine's classifier.

Thus the proposed technique possesses good imperceptibility and high-level security.

Finally, to improve the security, ABC has been applied at the last level to make smoothing on (Is) and to confirm the imperceptibility, see Figure 3.

According to the authors of this paper, their algorithm has good imperceptibility and a higher PSNR value when it was compared to four other transform domain based algorithms.

Maggie O'Sullivan seems to acknowledge the forces of insects to make imperceptibility possible; what endures out of experimentation and also subverts the primacy of human subject is the presence of insects, as suggested by the images of insects with their resilient presence, right on top of the feathers and text.

Lower BER means better imperceptibility of the algorithm.

In [5] different techniques of image watermarking are divided into spatial and transform domain and it is mentioned that the transform domain techniques provide higher robustness and imperceptibility than spatial domains to embed the watermark images.

In the field of secret information hiding, researchers should concentrate on three requirements which are payload, imperceptibility, and robustness.

This nods toward the influence of Ad Reinhardt, Vega's art teacher at Brooklyn College in the late '50s, whose legendary "black paintings" feature monochromatic crosses that hover near imperceptibility. Vega was also an admirer of Jackson Pollock, and compared the numerous electric wires dangling from his sculptures to Pollock's splashes.