Aplicação do Algoritmo LBG Ponderado e da Transformada Discreta do Cosseno na Compressão de Imagens

Lia Vogas K. Marrara, Waslon Terllizzie A. Lopes

DOI: 10.14209/sbrt.2015.70

Evento: XXXIII Simpósio Brasileiro de Telecomunicações (SBrT2015)

Keywords: Image Processing Vector Quantization Discrete Cosine Transform Mu-Law

Abstract

This paper shows that the quality of coded images based on Vector Quantization and Discrete Cosine Transform could be enhaced by using the weighted LBG Algorithm where the weights are calculated using μ Law. Simulation results show improvements up to 0.62 dB.

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