System and method for data publication through web pages
A system and a method for publishing a newspaper page or other data through a Web page, to make it available more easily through a network such as the Internet. The data is automatically converted by first rendering the newspaper page into a digital format; the converting the digital format to a basic internal publishing format; and then publishing the data in a number of different possible publishing formats, including a mark-up language document such as a Web page. Features include arrangement of content according to relationships within the information by analyzing the page as distinct objects. Object types include titles, articles, pictures etc. Objects may be categorized, and objects in each category are preferably compressed according to a different image format.
1. A method for efficiently compressing an electronic image representing a page of an existing document, the page comprising text and graphics portions integrated together in a page structure, the method comprising:
analyzing said page structure;
automatically separating the page of the existing document in the electronic image into a text layer, and a raster graphics layer, and a vector graphics layer, all of said layers being logical layers in a first electronic image format;
compressing said text logical layer, said raster graphics logical layer and said vector graphics logical layer into a first, second and third compressed image formats respectively, wherein said first compressed image format utilizes a first image compression method optimized for text, said second compressed image format utilizes a second image compression method optimized for raster graphics, said third compressed image format utilizes a third image compression method optimized for vector graphics;
selecting the compressed image format for each logical layer to provide respectively more efficient compression therefor;
decompressing said compressed text logical layer, said compressed raster graphics logical layer and said compressed vector graphics logical layer in accordance with said first, second and third image compression methods respectively; and
displaying, through a Web browser, the electronic image of the page by combining said decompressed text logical layer, said decompressed raster graphics logical layer and said decompressed vector graphics logical layer for display, said combining being to reproduce said analyzed page structure from said logical layers,
wherein said separating at least said text, said raster graphics, and said vector graphics portions from the page further comprises converting the page to an interconvertible format, such that said layers are separated according to said interconvertible format.
2. The method of claim 1 , wherein said raster graphics layer comprises a photographic image layer.
3. The method of claim 1 , wherein an appropriate page resolution is selected for the page.
4. The method of claim 1 , wherein at least one optimization parameter is selected for each layer for performing said compression method.
5. The method of claim 1 , wherein the document comprises a digital document, such that the page is converted to said interconvertible format without requiring scanning.
6. The method of claim 1 , wherein the document comprises a document in a physical format, such that the page is converted to said interconvertible format by scanning the page to form a digital document, and then converting said digital document to said interconvertible format.
7. The method of claim 6 , wherein said separating at least images of text, raster graphics, and vector graphics segmenting a plurality of areas on the page according to vector graphics, raster graphics or textual components.
8. The method of claim 7 , wherein information from said segmenting is used for building said layers.