ABSTRACT
Image steganography is the science of hiding data for securing confidential communication and it is the most popular type of carrier to hold information. Many algorithms have been proposed to hide information into digital images. The least significant bit algorithm (LSB) as one of the algorithms proposed is widely used in message embedding. However, the robustness of the algorithm based on LSB is low. The hidden message is usually destroyed when some image operations like resizing, cropping and rotation are applied to the stego-image. To overcome this limitation, this work proposed an improved image steganography based on least significant bit matching revisited (LSBMR) using Sobel edge detection that withstands image operations like resizing, rotation and cropping. The proposed method employs 2-dimensional discrete cosine transformation (2D-DCT) to transform the detected edges of the cover image pixel value into its coefficient, embeds the secret message in the coefficients of the detected edges of the cover image which was implemented in Netbeans IDE. Experimental results produced better stego-image quality that is robust against multiple image operations such as resizing and cropping. The statistical steganalysis tools such as Virtual Steganographic Laboratory (VSL) and StegExpose cannot detect the presence of secret information in the stego-image. Also, the proposed system generated stegoimage with Peak Signal to Noise Ratio (PSNR) that is an image quality metric of 68 decibels (dB) for 8000 bits of secret message as regards to the invisibility over the existing steganography technique.
Background to the Study
In a developing country like Nigeria, there is need for efficient and well trained individuals who would be able...
ABSTRACT
This study evaluated the effect of flood on farm families in Delta State. It specifically desc...
ABSTRACT
The study focused on the use of information communication technology facilities by library professionals...
Background To The Study
Especially in densely populated urban sectors, the most efficient method for transferring people...
Statement of the Problem
Business organizations in Nigeria especially manufacturing industries failed t...
ABSTRACT
To accurately explore and develop prospective mineral deposits, systematic geophysical approaches becomes a useful tool to estab...
ABSTRACT
A large majority of organizations worldwide commit large amounts&nb...
ABSTRACT
This study was carried out on the role of trade union towards solving employee's problems...
STATEMENT OF THE PROBLEM
Workers leave organization due to the fact that they are not motivated enough. Some are not wil...
Abstract
The consequences of drug abuse and alcoholism placed great burden on Nigerian society as it affected the econo...