الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Image and video compression has being an intriguing area of research over the last two decades. Many techniques were developed increasing the compression ratio and/or decreasing the processing cost. As the Multimedia computing starts soaring during the last few years, a new parameter popped up; it is the “Quality”. In this work, different compression techniques are investigated and compared using both objective and subjective measures. A variety of images and video sequences were selected for the test-bench to measure variations of the different parameters for each technique.
Multimedia application meant, a decade ago, an application that supports some audible sound effects, and a pictorial presentation. Nowadays, almost all applications are converted to Multimedia applications, which imply an application that uses real-time DVD video, music, virtual reality shows and control, video conferencing, and Internet communication. Multimedia is made possible and affordable today because of increases in storage and speed and decreases in size and cost; this yields an increase in performance and availability. (1)
Multimedia can be used in just about any situation. It may just be used to enhance areas that were previously text only, for example presentations or information kiosks. Multimedia email and video conferencing allows information to be communicated better. Collaborative working tools are becoming cheaper and more widely available, and many video conferencing applications now allow application sharing. Multimedia is widely used in education, from preschool to postgraduate. Interactive multimedia allows students to explore data, and simulations allow the students to work on experiments. This can be particularly useful in a distributed environment with distance learning. Multimedia can also be used to enhance data presentation and data analysis, for example, by converting the images from a satellite to sound, it becomes much easier to hear discrepancies in that data. (2)
Multimedia can mean various things. It can be encyclopedia on a CD-ROM, such as Microsoft’s Encarta. Multimedia may be also used to supplement the usual slides with animation, such as PowerPoint. Others are sending electronic mail over the Internet, with clips of animation or digital cameras. Just about everyone seems to be entering the field, often in various capacities. Traditional “content” producers, such as Hollywood studios and publishing houses, are joining consumer electronics and computer companies and entrepreneurial outfits as professional multimedia publishers. Digital equipment is forming an education and entertainment division. IBM is publishing children’s books. Microsoft is making movie guides; Lucas Films, CD ROMs for school children. Warner New Media is producing electronic titles. NBC is readying news for desktop computers.(3) Other