Quality Assessment of Resampled Digital Images by Statistical Metrics

Ładowanie...
Obrazek miniatury
Data
2017
Autorzy
Korneta, Wojciech
Tytuł czasopisma
ISSN
Tytuł tomu
Wydawnictwo
Wydawnictwo Uniwersytetu Rzeszowskiego
Abstrakt
The visual degradation of resampled (downsampled and then upsampled to the original size) greyscale digital images is quantified by local luminance, contrast and structure statistical comparison indexes. Spatial distributions of these indexes are shown. The global quality of resampled image is quantifiedby the similarity index defined by median values of local indexes. Parameters of this index consistent with the median opinion score are determined. The dependence of global indexes on the size of downsampled image is presented.
Opis
Słowa kluczowe
image quality , image resampling , similarity index
Cytowanie
Edukacja – Technika – Informatyka nr 3(21)/2017, s. 282–287