De-noising Method based on Median Filter and Wavelet Transform
نویسندگان
چکیده
As to the hybrid noise characteristic, a mixed de-noising method is hereby proposed in combination with the median filter and the wavelet transform. Firstly, conduct the median filter to the pending image; then apply an improved threshold function to the wavelet transform (WT) to eliminate noise; finally, adopt Signal Noise Ratio (SNR) to evaluate the image de-noising effect. The experiment results show that de-noising effect of the new algorithm is more excellent than the traditional wavelet transform and can eliminate hybrid noise so that the image quality can be improved effectively.
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