A no-reference Spatial Aliasing Measure for digital image resizing

A no-reference Spatial Aliasing Measure for digital image resizing

We present a no-reference spatial aliasing measure (SAM) for images, that assesses the impact of visual jaggy edges in resized digital images. The measure makes use of the fact that visible spatial aliasing is likely to occur in areas with strong directional energy. In these regions, aliasing energy...

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Bibliographische Detailangaben
Hauptverfasser: Reibman, A.R., Suthaharan, S.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
aliasing
Area measurement
Degradation
Digital images
Energy measurement
Filters
Frequency
Image coding
Image quality
image resizing
image scaling
jagginess
Pixel
Testing
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Beschreibung
Zusammenfassung:We present a no-reference spatial aliasing measure (SAM) for images, that assesses the impact of visual jaggy edges in resized digital images. The measure makes use of the fact that visible spatial aliasing is likely to occur in areas with strong directional energy. In these regions, aliasing energy often appears in frequency regions that have little image content. We show the effectiveness of SAM using a subjective test.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2008.4711972