The amount of audio visual information available in digital format has grown exponently in recent years. Gigabytes of new images, audio and video clips are generated and stored every day, building up a huge, distributed, and mostly unstructured repos

Applications of Computer graphics, especially digital photographs and other complex color images,can produce very large file sizes. Problems of storage space and the necessity to fast transmit image data across networks and over the Internet, have th

Applications of Computer graphics, especially digital photographs and other complex color images,can produce very large file sizes. Problems of storage space and the necessity to fast transmit image data across networks and over the Internet, have th