PAGE XML format collection for document image page content and more

For an introduction, please see the following publication: https://www.primaresearch.org/publications/ICPR2010_Pletschacher_PAGE

The most actively used XML formats are:

• PAGE XML for page content (regions, text lines, words, glyphs, reading order, text content, ...)
• PAGE XML for layout analysis evaluation (evaluation profiles, evaluation results, ...)
• PAGE XML for document image dewarping (dewarping grids)

All formats are defined by an XML schema, hosted officially on primaresearch.org: https://www.primaresearch.org/schema/PAGE/gts/pagecontent/2019-07-15/pagecontent.xsd https://www.primaresearch.org/schema/PAGE/eval/layout/2013-07-15/layouteval.xsd https://www.primaresearch.org/schema/PAGE/gts/dewarping/2014-08-26/dewarping.xsd

Please see the wiki for more information.

Note: The master branch contains the proposed changes for the next release.

Proposed media type for page content: "application/vnd.prima.page+xml"