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In this era of technology, internet has gained huge popularity and web presence is an important aspect for success of any ebusiness. This paper presents a new method which focuses on two most important principles of web design i.e. functional convenience and presentational delight for enhancing the web usability. For improving functional convenience the actual usage patterns are extracted from web server logs for an ecommerce website. These logs are firstly preprocessed to detect users, user sessions and user transactions and then an usage mining method is applied to determine actual usage paths through the clickstreams. The actual usage paths will help to identify the usability issues and help suggest the corrective measures to improve it. For improving presentational delight a survey is taken to identify the user's perspective for making web design efficient. This cognitive study of user and actual user behavior help to identify the different usability issues. Based on these issues the different procedures are listed for design improvement.

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The existing paper explains reversible data hiding in encrypted images based on progressive recovery. Image processing is a method to convert an image into digital form and perform some operations on it, in order to yield an enhanced image or to extract some essential information from it. Three parties are involved in the framework, including the content owner, the data-hider, and the recipient. The owner encrypts the original image using an algorithm i.e. stream cipher . The method proposes stream cipher algorithm such as the AES (Advanced Encryption Standard)and uploads cipher text to the server. The data-hider on the server divides the encrypted image into three channels and respectively insert different amount of additional bits into each channel to generate a marked encrypted image. On the recipient side, additional message can be extracted from the marked encrypted image, and error free image can be recovered. Reversible data hiding is a technique used to recover original content it can be perfectly restored after extraction of the hidden message.