Title :
An algorithm for integrated noise reduction and sharpness enhancement
Author :
Ojo, Olukayode A. ; Kwaaitaal-Spassova, Tatiana G.
Author_Institution :
Philips Consumer Electron., Eindhoven, Netherlands
fDate :
8/1/2000 12:00:00 AM
Abstract :
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
Keywords :
high-pass filters; image enhancement; interference suppression; two-dimensional digital filters; video signal processing; image sharpening; integrated filter; local image statistics; noise reduction; noisy video signal; sharpness enhancement; video image quality; Additive noise; Circuit noise; Displays; Filtering; Image quality; Low pass filters; Noise reduction; Pixel; Signal processing algorithms; Streaming media;
Journal_Title :
Consumer Electronics, IEEE Transactions on
