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A Visually Tuned Image Compression with Discrete Wavelet Transform


Rimac-Drlje, Snježana; Zovko-Cihlar, Branka; Grgić, Sonja
A Visually Tuned Image Compression with Discrete Wavelet Transform // PROCEEDINGS IWSSIP 2000 / Čučej, Žarko ; Planinšič, Peter ; Gergič, Bojan (ur.).
Maribor: : IWSSIP 2000 Organizing Committee, 2000. str. 135-138 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
A Visually Tuned Image Compression with Discrete Wavelet Transform

Autori
Rimac-Drlje, Snježana ; Zovko-Cihlar, Branka ; Grgić, Sonja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
PROCEEDINGS IWSSIP 2000 / Čučej, Žarko ; Planinšič, Peter ; Gergič, Bojan - Maribor : : IWSSIP 2000 Organizing Committee, 2000, 135-138

Skup
IWSSIP 2000, 7th International Workshop on Systems, Signals and Image Processing

Mjesto i datum
Maribor, Slovenija, 7-9.6.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Discrete Wavelet Transform; Quantization Noise Visibility; Still Image Compression

Sažetak
The discrete wavelet transform (DWT) has properties to effectively decorrelate and compact energy of digital images. With a quantization scheme based on the human visual characteristic and with an effective coding technique a high compression rate of images is possible. This article discusses the probability density function (PDF) of the noise introduced by quantization of the wavelet coefficients in dependence of the subband wavelet coefficients statistics and quantization step q. The results of the noise visibility measurements are given for different orthogonal and biorthogonal wavelets.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika



POVEZANOST RADA


Projekt / tema
036015

Ustanove
Fakultet elektrotehnike i računarstva, Zagreb