EDUCATIONAL SOFTWARE TOOL FOR DIFFERENT WAVELET BASED METHODS: WAVDEC (CROSBI ID 678421)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Dumić, Emil ; Havaš, Ladislav ; Srpak, Dunja
engleski
EDUCATIONAL SOFTWARE TOOL FOR DIFFERENT WAVELET BASED METHODS: WAVDEC
In this paper Matlab-based application-GUI "Wavdec" is presented, serving as educational tool for different signal processing courses. Wavdec analyses an image into different wavelet subbands, using three different wavelet decomposition/reconstruction methods: Discrete Wavelet Transform (DWT), Quincunx transform and Steerable Pyramid Wavelet Transform (SPWT). Different levels and wavelet types for each method can be chosen. Also, Gaussian noise with manually defined mean and variance can be added to the original image. Hard thresholding, which either keeps or removes values of coefficients, for each subband can be defined arbitrarily. Thus, Wavdec can be used in different scenarios, for example to demonstrate scalable image compression or noise removal. Finally, Wavdec application automatically calculates image quality between original and reconstructed image using three image quality measures as well as their compression ratio. Finally, the effects of using the described original developed tool on education of electrical engineering students have been disclosed.
Educational tool, wavelet methods, Wavdec, signal processing, image quality.
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Podaci o prilogu
3495-3503.
2019.
objavljeno
Podaci o matičnoj publikaciji
EDULEARN19 Proceedings
Gómez Chova, L ; López Martínez, A ; Candel Torres, I
Palma de Mallorca: International Academy of Technology, Education and Development (IATED)
978-84-09-12031-4
2340-1117
Podaci o skupu
11th Annual International Conference of Education and New Learning Technologies (EDULEARN19)
predavanje
01.07.2019-03.07.2019
Palma de Mallorca, Španjolska