Majalah Ilmiah Teknologi Elektro
Vol 20 No 2 (2021): (Juli-Desember) Majalah Ilmiah Teknologi Elektro

Kompresi Citra Medis dengan DWT dan Variable Length Code

I Gusti Ayu Garnita Darma Putri (Unknown)
Nyoman Putra Sastra (Uda)
I Made Oka Widyantara (Unknown)
Dewa Made Wiharta (Unknown)

Article Info

Publish Date
25 Dec 2021

Abstract

This paper designed a medical image compression scheme using DWT with mother wavelet Coiflet and Symlet. Thresholding and quantization process are the key to lossy compression in this scheme, and the outputs will be coded with Huffman or Arithmetic coding. There are four different codec combinations namely: Coiflet-Huffman, Coiflet-Arithmetic, Symlet-Huffman, Symlet-Arithmetic. Compression performance of each codec will be analyzed based on PSNR and compression ratio. The compression testing used 3 grayscale medical images with dimension of 160x160 pixels. The most optimal PSNR dan rate are produced by Symlet-Aritchmetic codec with recommendation threshold value less than 12. Threshold value above 12 causes PSNR of the reconstruction image will be below the minimum PSNR stardard for digital image, which is of 30dB.

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Journal Info
Majalah Ilmiah Teknologi Elektro
Website

Abbrev

mite

Publisher

Universitas Udayana

Subject

Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

Description

Majalah Ilmiah Teknologi Elektro (MITE) is peer review journal, published twice a year by the Study Program of Magister Electrical Engineering, Faculty of Engineering, Universitas Udayana. This journal discusses the scientific works containing results of research in the field of electrical, include ...