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Using Discrete Wavelet Transform and Wiener filter for | ||
| Journal Of Wassit For Science & Medicine | ||
| Article 1, Volume 2, Issue 2, 2009, Pages 18-30 | ||
| Authors | ||
| Dr. Sadar Pirkhider Yaba; Mohammed M. Siddeq | ||
| Abstract | ||
| In this paper we proposed an algorithm for image de-nosing based on; the two level discrete wavelet transform (DWT), and Wiener filter, also this paper describe estimate noise power. At first The DWT transform noisy image into sub-bands, consist of low-frequency and high-frequencies, and then estimate noise power for each sub-band. The noise power is computed through two important computations; compute square of variance for each sub-band then compute the mean of the variance. | ||
| Keywords | ||
| Keywords Discrete Wavelet Transform; Wiener filter; Estimates noise power | ||
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