A Novel Image Encryption Supported by Compression Using Multilevel Wavelet Transform
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2012, Vol 3, Issue 9
Abstract
In this paper we propose a novel approach for image encryption supported by lossy compression using multilevel wavelet transform. We first decompose the input image using multilevel 2-D wavelet transform, and thresholding is applied on the decomposed structure to get compressed image. Then we carry out encryption by decomposing the compressed image by multi-level 2-D Haar Wavelet Transform at the maximum allowed decomposition level. These results in the decomposition vector C and the corresponding bookkeeping matrix S. The decomposition vector C is reshaped into the size of the input image. The reshaped vector is rearranged by performing permutation to produce encrypted image. The vector C and the matrix S serve as key in the process of both encryption and decryption. In this analysis, we have noticed that the reconstructed image is a close replica of the input image.
Authors and Affiliations
Ch. Samson, V. Sastry
Keywords
Related Articles
- EP ID EP114406
- DOI -
- Views 117
- Downloads 0
Topology-Aware Mapping Techniques for Heterogeneous HPC Systems: A Systematic Survey
At the present time, the modern platforms of high-performance computing (HPC) consists of heterogeneous computing devices which are connected through complex hierarchical networks. Moreover, it is moving towards the Exas...
Experimental Evaluation of the Virtual Environment Efficiency for Distributed Software Development
At every software design stage nowadays, there is an acute need to solve the problem of effective choice of libraries, development technologies, data exchange formats, virtual environment systems, characteristics of virt...
Quizrevision: A Mobile Application using the Google MIT App Inventor Language Compared with LMS
At Qassim University, the Blackboard (https://lms.qu.edu.sa) Learning Management System (LMS) is used. An exploratory study was conducted on 105 randomly selected students attending Qassim University. Of these, 91 studen...
Message Segmentation to Enhance the Security of LSB Image Steganography
Classic Least Significant Bit (LSB) steganography technique is the most used technique to hide secret information in the least significant bit of the pixels in the stego-image. This paper proposed a technique by sp...
Reducing Shared Cache Misses via dynamic Grouping and Scheduling on Multicores
Multicore technology enables the system to perform more tasks with higher overall system performance.However, this performance can’t be exploited well due to the high miss rate in the second level shared cache among the...