Sentence examples for a secure image from inspiring English sources

The new process could also see customers being allowed to photograph cheques they receive – perhaps using a secure image app supplied by their bank – and then send the images electronically to their bank for processing.

A secure image hashing framework was given by Ahmed et al. [7].

The design of the proposed algorithm is simple and efficient, and based on three phases which provide the necessary properties for a secure image encryption algorithm including the confusion and diffusion properties.

One of the general ways in designing a secure image encryption algorithm based on chaos theory is to derive a number of round subkeys from the Key Schedule algorithm under the control of an external secret key.

However, the security of image hashing does not only lie on a higher differential entropy, which is only one aspect of a secure image hashing [8, 16], but also includes other factors such as key diversity and prior knowledge possessed by adversaries.

Without increasing the complexity of the optical hardware, such algorithm can result in a more secure image encryption with the addition of the extra degrees of freedom provided by the fractional Fourier transforms, i.e. the fractional orders.

Since it is believed that a high differential entropy is a necessary property of secure image hashes, we evaluate the security in terms of unpredictability of FJLT hashing by quantifying the differential entropy of the FJLT hash vector, as proposed in [8].

Monga and Mihçak addressed a robust and secure image hashing function in [20], which provides robustness to affine transforms since the effect of geometric attacks on image blocks in the spatial domain manifests (approximately) as independent and identically distributed noise on non-negative matrix factorization vectors.

It can be widely applied to secure image transmissions at a high speed over the internet and for image watermarking.

More precisely, the proposed approach used to design a secure symmetric image encryption increases its resistance to various attacks such as statistical and key analysis attacks and can avoid the hidden security attacks in real-time applications.

In [5], a key-dependent JPEG2000-based robust hashing method was addressed for secure image authentication.