The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We propose an extended weighted median filter which removes random-valued impulse noise with preserving detailed structures in a grayscale image. This filter combines the median filter with a square window and that with adaptive ones constructed by using 8-neighborhood minimum spanning trees (MSTs). The former one has superior capability in the impulse noise removal. However, it tends to destroy detailed...