ELECTRICAL CABLES FOR POWER AND SIGNAL TRANSMISSION

publishers. The objectives of this series are to present state-of-the-art reviews for researchers as well as newcomers of various subjects in this field, all prepared by the respective specialists. Libraries and museums often keep the records of their rare collections of articles such as books and paintings in picture format. These pictures or any other kinds of records in analog format may fade with time just like the originals. Nowadays, similar records can be converted to digital formats, which can be transmitted, manipulated, or just stored without quality loss. With the advances of multimedia and the Internet, all the stored databases can be made available readily almost to anyone, anywhere. This progress is potentially extremely valuable to schools, libraries, and hospitals. This book addresses three important topics in this field: image restoration, copyright protection by watermarking, and efficient information retrieval.