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.
Most of the algorithms for evaluating image scrambling degree depend on the plain image and they cannot achieve blind evaluation. This paper indicates that the ideal scrambled image is similar to the uniform noise in spatial domain, advances a definition of ideal image scrambling which is independent of the plain image and designs a new evaluating index. In frequency domain, the gray relational degree,...
Digital image scrambling is an effective tool in preprocessing and post-pressing of data hiding, digital watermarking and image encryption. In order to evaluate the image scrambling performance, different scrambling methods have been proposed by different authors based on different assumptions. In this paper, a new measure of image scrambling degree based on the method of Chi square good of fitness...
Digital image scrambling is an effective tool in data hiding, digital watermarking, and digital image encryption. In order to evaluate the image scrambling performance effectively, a new normalized measure of image scrambling degree based on the grey level difference and the general information entropy of the scrambled image is proposed. This new method measures the image scrambling degree from both...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.