A Novel Based On Image Blocking Method To Encrypt-Decrypt Color

Abstract

Encryption of digital color image is the process of conversion original digital color image into an encrypted one to protect the image from hacking or to prevent an authorized person to get the valuable information located in the color image. The process of color image encryption-decryption is very important issue in human activities and here in this paper we will introduce a new simple, efficient and highly secure method to be used for color image encryption-decryption. The proposed method will be tested and implemented, the efficiency parameters of the proposed method will be calculated and will be compared with other methods parameters to prove the efficiency issues of the proposed method.

Analysis of Digital Signal Features Extraction Based on LBP Operator

“…[32], [33]. Various authors proposed LBP and CSLBP (center symmetric LBP) methods [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31], these methods were directed for image manipulation, and sometimes they were used to extract features for both gray and digital images [20] [21], Figure 3 Based on LBP [20][21][22][23][24][25][26][27][28][29][30] we introduce a modified LBP (MLBP) method to create a voiceprint for a digital voice signal, these voiceprint can be used in a recognition system to find a classifier that can identify the voice signal, MLBP can be implemented applying the following steps:…”

Improving the security of LSB image steganography

“…In [12] a comparative analysis of secrete message hiding methods was proposed and it was mentioned that the analyzed methods: Optimum Pixel Adjustment Procedure [13], Inverted Pattern Approach [14], P Method Using Relative Entropy [14], and Pixel Value Differencing (PVD) [15] reduces the distortion caused by the LSB substitution methods.…”

“…This key is very huge and complicated in order to maximize the hacking time and makes it impossible for hacking. The proposed method was implemented several time using various images with a fixed message, table (2) shows the calculated performance parameters of this experiment:…”

“…Therefore, to the human eye, the resulting holding image will look identical to the covering image. This allows high perceptual transparency of LSB as shown in figures (2) and (3). The disadvantages of LSB method is that the method is not secure, because it is very easy hack the secret message and extract it by any un-authorized person.…”

Using FIR Coefficients to Form a Voiceprint

“…Digital signals [1], [2], [3] such as color digital images [4], [5], [6], digital voices [7], [8] are the most papular digita l data types used by various applications [9], [10] such as security systems [19], identification system [20], [21] and human recognition systems [11], [12]. Information in the voice signal is embedded in both its time and frequency domains, within these domains; information relevant to profiling may be present in the patterns exhibited by specific characteristics of the voice signal.…”