An algorithm for integrated noise reduction and sharpness enhancement

Noise reduction and image sharpening are techniques to improve video image quality. However, noise filters tend to blur image detail, while filters for image sharpening tend to increase noise. So, cascading the two filters does not always give the best performance. We present an integrated filter th...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2000-08, Vol.46 (3), p.474-480
Main Authors: Ojo, O.A., Kwaaitaal-Spassova, T.G.
Format: Article
Language:English
Subjects:
Additive noise
Circuit noise
Displays
Electronics
Filtering
Image quality
Low pass filters
Noise
Noise reduction
Pixel
Sharpening
Sharpness
Signal processing algorithms
Statistics
Streaming media
Video signals
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Summary:Noise reduction and image sharpening are techniques to improve video image quality. However, noise filters tend to blur image detail, while filters for image sharpening tend to increase noise. So, cascading the two filters does not always give the best performance. We present an integrated filter that reduces noise and sharpens details in a noisy video signal depending on local image statistics. This allows both features to be maximally exploited.
ISSN:0098-3063
1558-4127
DOI:10.1109/30.883396