Work place: Uttarakhand Technical University/Computer Science, Dehradun, 248007, India
E-mail: mail2jagdishgoswami@gmail.com
Website:
Research Interests: Computer Science & Information Technology, Computational Science and Engineering, Computational Engineering, Computer systems and computational processes
Biography
Mr. Jagdish Giri Goswami pursuing M.tech in Computer Science & Engineering from Uttarakhand Technical University, Dehradun and B.Tech degree in Computer Science & Engineering from D.B.I.T. Dehradun, Uttarakhand Technical University, in 2011.
By Jagdish Giri Goswami Pawan Kumar Mishra
DOI: https://doi.org/10.5815/ijigsp.2016.12.06, Pub. Date: 8 Dec. 2016
Image compression is playing a vital role in the development of various multimedia applications. Image Compression solves the problem of reducing the amount of data required to represent the digital image. In image compression methods there are several techniques evolved. All techniques of image compression basically divided into two parts, spatial domain compression technique and frequency domain compression technique. In frequency domain techniques there are numerous techniques like Fourier Transform, Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT) etc. after converting the image into frequency domain transformation, it uses several encoding technique like Embedded Zero Tree (EZW) coding, SPIHT (Set Partitioning in Hierarchical Tree), ASWDR (Adaptively Scanned Wavelet Difference Reduction) WDR (Wavelet Difference Reduction) and STW (Spatial orientation Tree Wavelet) etc. These encoding schemes are also known as Progressive Coefficients Significance Methods (PCSM). In this paper the wavelet filters combine with improved PCSM codes and proposed a new filter for further improvement. In new wavelet proposed filter has slightly change in the scaling and wavelet function of existing filter. It gives the wide range of selectivity of frequencies in higher and lower side of it. Hence it provides better lower bandwidth range with greater high preservation of frequencies. Scaling and wavelet impulse response of proposed filter then a comparison is made on the proposed work with all the filters. Filters are demonstrated to show the performance of compression using wavelet functions. The filters are used in the work like bi-orthogonal (BIO), Reverse bi-orthogonal (RBIO), Coiflets (COIF), Daubechies (DB), Symlet (SYM) and Improved Progressive Coefficients Significance Method (IPCSM) encoding scheme will be compare and analyze with all compression parameters like mean square error (MSE), peak to signal noise ratio (PSNR), compression ratio (CR), execution time (ET), bits per pixel (BPP), root mean square error (MSE).
[...] Read more.Subscribe to receive issue release notifications and newsletters from MECS Press journals