The quality of the RGB color image degrades from the minute it is captured to the time it is
displayed to the human observer. The image is subject to many kinds of distortions during …

Fingerprint recognition is one of the most widely use operation, due the big number of
applications requiring this operation, so seeking a good method of fingerprint features …

The median filter is used to reduce the effect of noise, but it treats all pixels, whether they are
noise points or not, which negatively affects many non-noise values in the digital image, and …

Colored digital images are affected by salt and pepper noise, affecting their clarity, contents
and properties. The negative effect on the image increases with the increase in the noise …

Wavelet packet tree analyses both low and high frequency sub-bands of a signal,
consequently provides more elaborate information to be exploited for extracting features …

Detailed human fingerprints, almost unique, are difficult to change and are permanent on an
individual's life, making them suitable as long-term signs of human identity. They may be …

Digital images are affected by different types of noise, including salt and pepper noise,
which negatively affects the image, changing its features and affecting many of its …

Face recognition system is a vital system, which is now used in many important applications
such security systems, banking systems, robotics application, police applications and so on …

Human speech signal is an important digital data type and it si widely used in many vital
applications such as computer security systems. In this paper research we will focus on …

A color digital image is a very important type of digital data, and this image may be exposed
to the effect of negative noise, which distorts it and changes some of its characteristics …