Implementation of Hybrid Wavelet Transform for Adaptive Lossless Image Compression
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2015, Vol 17, Issue 5
Abstract
Abstract: In digital image processing, Image compression is a type of data compression causing reduction in image size but maintain the image quality. It reduce cost and time in image storage and transmission and thuscan enhance the performance of the digital system. The main purpose is to reduce and restored the volume of data such that the real image will be perfectly rebuild from the compressed image. So, a proper selection ofencoding and decoding algorithm is require for image compression. Among the algorithms, EZW is one of the best image compression algorithm and is also computationally fast. Here, a method for lossless compression ofimage is projected which uses the Embedded Zero trees of Wavelet Transforms in combination with Huffman coding and LZW algorithm for further compression. The objective is to calculate the optimal threshold at eachspecific level of decomposition for the compression of a digital image. Tables of result are shown using this proposed method for 8-decomposition level of image size 256*256 which determined Ratio of compression, Bits per pixel and PSNR for each distinct values of threshold vary from 4 to 64.
Authors and Affiliations
Dibas Sil , Bramah Hazela
Keywords
Related Articles
- EP ID EP106399
- DOI -
- Views 82
- Downloads 0
Simulation based Evaluation of a Simple Channel Distribution Scheme for MANETs
Mobile Ad-hoc Networks (MANETs) are special kind of wireless networks with no centralized control. They are ideal candidate for several real world applications where network need to be established on the fl...
Improved and Feasible Access to Health Care Services throughIntegration of Mobile Technology and Big Data (Indian Context)
Abstract: Big Data is already changing the way business decisions are made, however, it is still early in thegame. Big data has the potential to increase the capacity and capabilities of conventional storage, repor...
A Study on A Hybrid Approach of Genetic Algorithm & Fuzzy To Improve Anomaly or Intrusion
Abstract: This paper describes a technique of applying Genetic Algorithm (GA) and fuzzy to network Intrusion Detection Systems (IDSs). A brief overview of a hybrid approach of genetic algorithm and fuzzy to improve anoma...
Mapping Procedural Modules To Storage
Majors in computer science accept structured programming as a subset of procedural programming paradigm and it is intended for complex system design and development. But as everyone is moving towards object orien...
An Improved Simulation Model for Rayleigh Fading Channels
Abstract:the model of propagation of electromagnetic energy from transmitter to receiver will be largely by way of scatting, either by reflection from the flat sides of buildings or by diffraction around such buildings o...