Optimizing the transmission and storage of electronic documents in a communication network through the selective conversion of the color palettes of document images to palettes with a lower number of colors

摘要

Enabling the server systems managing E-mail distribution, as well as the server systems managing Web site document distribution to selectively reduce the quality of images in E-mail and Web pages in order to maintain effective transmission and storage of such electronic documents. An implementation in the document transmission path intermediate the document sources and the receiving display stations determines the number of colors in the color palettes of images in transmitted documents, and a device responsive to the determination selectively converts these color palettes to color palettes having a lower number of colors for said images. Then, an implementation transmits the documents having these converted color palettes. There is also a storage device in the document transmission path intermediate the sources and the receiving display stations for storing the documents having the converted color palettes with a lower number of colors for the images.