Development and Comparison of Image Encoders Based on Different Compression Techniques
Tutor / directorCasar López, Marta
Tipus de documentProjecte/Treball Final de Carrera
Data2010-02
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
In this project we present some of the most relevant image compression methods of the
digital era. From lossless compression techniques like Laplacian Pyramid, to the current
and frequently used lossy JPEG compression techniques, going through techniques that
have been very influential in the past, as Fractal compression. The project is organized
by chapters describing briefly the algorithms and presenting the results obtained when
applied to three different test images. Finally we perform a comparative analysis
synthesizing the main results. In this analysis we see the large difference in compression
ratios between lossy and lossless compression algorithms. We also compare our
developed lossy algorithms, observing that the first Fractal algorithm gives poor PSNR
results, while our second Fractal algorithm and the JPEG algorithm give quite better
qualities of compression; the latter achieving results comparable to present day JPEG algorithms
TitulacióENGINYERIA ELECTRÒNICA (Pla 1992)
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Development and ... Compression Techniques.pdf | 4,349Mb | Visualitza/Obre |