National Archives – Developments in Polynominal Texture Mapping

Following Carey’s visit to the National Archives in January we are pleased to hear that they have posted the first of a series of blogs about PTM (polynomial texture mapping).

PTM is one application of reflectance transformation imaging ( RTI) and allows the user to ‘re-light’ images, so that textured surfaces can be explored.  Further pairs/sets of PTMs will be posted over the coming days/weeks. These will be of straw-work plaits, and lace; then probably wax seals.

See below:

http://blog.nationalarchives.gov.uk/blog/capturing-and-exploring-texture/

http://blog.nationalarchives.gov.uk/blog/texture-mapping-part-two/

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