Daftar Isi: PENGUJIAN KOMPESI CITRA DIGITAL MENGGUNAKAN METODE DISCRETE COSINE TRANSFORM (DCT) DAN LEMPEL ZIV WELCH (LZW)

Main Authors:	APRILIANTA, TRI KUR, Samsuryadi, Samsuryadi
Format:	Thesis NonPeerReviewed Book
Bahasa:	ind
Terbitan:	, 2019
Subjects:	TA1632.A48 Image processing
Online Access:	http://repository.unsri.ac.id/24431/1/RAMA_55201_09021181419013.pdf http://repository.unsri.ac.id/24431/2/RAMA_55201_09021181419013_0004027101_01_front_ref.pdf http://repository.unsri.ac.id/24431/3/RAMA_55201_09021181419013_0004027101_02.pdf http://repository.unsri.ac.id/24431/4/RAMA_55201_09021181419013_0004027101_03.pdf http://repository.unsri.ac.id/24431/5/RAMA_55201_09021181419013_0004027101_04.pdf http://repository.unsri.ac.id/24431/6/RAMA_55201_09021181419013_0004027101_05.pdf http://repository.unsri.ac.id/24431/7/RAMA_55201_09021181419013_0004027101_06.pdf http://repository.unsri.ac.id/24431/8/RAMA_55201_09021181419013_0004027101_06_ref.pdf http://repository.unsri.ac.id/24431/9/RAMA_55201_09021181419013_0004027101_07_lamp.pdf http://repository.unsri.ac.id/24431/10/RAMA_55201_09021181419013_TURNITIN.pdf http://repository.unsri.ac.id/24431/

Daftar Isi:

Image Compression is a method for transmitting data to be more effective and efficient. There are two techniques in compression that are used namely; lossless compression and lossy compression. In lossless compression using the Lempel Ziv Welch method while in lossy compression it uses the Discrete Cosine Transform method. Each algorithm is tested with 30 grayscale image data and divided into 3 categories based on dimensions, with small size (256x256), medium (512x512) and large (1024x1024) with bmp format. The results of the test show the results of the Discrete Cosine Transform method has an optimal compression ratio with a value of 0.65 and the Lempel Ziv Welch method, get an optimal compression ratio value only for medium size (512x512) and MSE LZW value of 0 which means there is no pixel value that is reduced.