DALGACIK ALANI ORTANCA SÜZGECİ İLE İMGE PEKİŞTİRME IMAGE ENHANCEMENT BY WAVELET DOMAIN MEDIAN FILTER
Ergun Erçelebi, Sema Koç · 2005
In this study, we propose a method based on wavelet domain median filter (WDMF) for the image enhancement. The method is performed by transforming corruted image into wavelet domain and filtering the image by median filter iteratively. Spatial domain median filter is used iteratively to remove noise from the image. But in this case, encountering root image of median filter at early stage of iterations is an important issue so that no further imporvement on corrupted image is achieved. we overcome the problem with this study. Because WDMF prevents the median filter from encountering the root image at early stage of iterations. To evaluate performnace of the proposed method we compare the results of the proposed method with those of spatial domain median filter.