However, the level-of-detail (LOD) is dependent on the resolution of the digital images and high-resolution conventional images produce very large files that are difficult to manage and to transmit across networks because of their dependence on bandwidth availability (slow Internet connections). A strategy adopted to confront this problem is the image servers that use a “Russian doll” imaging architecture and give the user scalability and interactivity opportunities, because multiple resolutions of an image are stored in a single file and make it possible to progressively transmit an image. FlashPix and then JPEG2000 are the two image formats that introduced a new concept for imaging architecture . Metadata storing is also allowed. This image format is used by various museums such. Some of the FlashPix features are adopted by the JPEG2000 image format that also has the potential of progressive image transmission and scalability and some new features that fill the gaps for the inclusion of metadata and the protection of the content of earlier standards for encoding digital media. The advantages of the image format have been extensively investigated in research work and the JPEG2000 format has been adopted by cultural institutions .