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Image Recognition with Pastec

Pastec Workshop, University of Edinburgh, 8 February 2017. Notes https://gist.github.com/drjwbaker/8b296c37cd547dd8b17205db689a7375

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Image Recognition with Pastec

  1. 1. Image Recognition with Pastec Handout: http://bit.ly/2kptfLR James Baker, Lecturer in Digital History/Archives University of Sussex @j_w_baker This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Exceptions: quotations, embeds from external sources, logos, and marked images.
  2. 2. @j_w_baker pictures/1805/003895043-0-000107-2-[The-antiquities-of-Furness-1774-]-1805.jpg pictures/1805/003895043-0-000093-2-[The-antiquities-of-Furness-1774-]-1805.jpg Same woodcut, different printing
  3. 3. @j_w_baker pictures/1805/001427428-0-000002-1-Schir-Ginkertounis-Garland-or-dawis-the-day-and-the- Scottismanis-Garland-or-Schir-Andro-Wode-his-battell-wi-Schir-Stevin-Bull-Two-ancient- poems-1805.jpg pictures/1805/002302019-0-000002-1-Collegium-Bengalense-Carmen-cui-pr-mium- Buchanan-um-a-senatu-Academi-Glasguensis-adjudicatum-est-1805.jpg pictures/1805/003530071-0-000002-1-The-Poor-Man-s-Sabbath-etc-[A-poem-]-1805.jpg pictures/1800/002981885-0-000002-1-Pre-existence-A-poem-in-the-style-and-manner-of- Milton-etc-[By-Abel-Evans-]-1800.jpg Same bookplate
  4. 4. @j_w_baker pictures/1805/003607804-0-000221-1-[Poems-chiefly-written-in-retirement-The- Fairy-of-the-Lake-a-dramatic-romance--1805.jpg pictures/1805/001231823-0-000037-1-[The-Fig-Leaf-a-satirical-and-admonitory- poem-Dedicated-to-the-fashionable-world-[By-B-P-Cutham-]-Second-edition-]- 1805.jpg Same embellishment mirrored and upside down
  5. 5. @j_w_baker pictures/1800/000741009-0-000027-1-A-Descriptive-Review-of-the-Year-1799- comprised-in-twelve-monthly-sections-[In-verse-]-1800.jpg pictures/1800/000745995-0-000105-1-Essays-on-the-Progress-of-the-Vital- Principle-from-the-Vegetable-to-the-Animal-Kingdoms-and-the-Soul-of-Man- introductory-to-contemplations-on-Deity-MS-notes-[by-the-author]-1800.jpg Same embellishment with one printed very poorly
  6. 6. @j_w_baker pictures/1810/003419768-02-001055-1-A- System-of-Modern-Geography-or-the-natural- and-political-history-of-the-presen-1810.jpg pictures/1849/003592040-03-000045-1-The- World-as-it-is-A-new-and-comprehensive-system- of-Modern-Geography-physical-1849.jp An image in another image
  7. 7. @j_w_baker pictures/1806/000868209-01-000382-1-The-Poetical-Works-of-Erasmus-Darwin- Containing-the-Botanic-Garden-and-t-1806.jpg pictures/1850/001988654-01-000324-1-Pictorial-Half-hours-edited-by-C-K-1850.jpg Two illustrations of the same object at different orientations
  8. 8. @j_w_baker pictures/1814/003549690-0-000059-1-Sketches-of-Russia-illustrated-with-fifteen- engravings-1814.jpg pictures/1831/003549691-0-000063-1-[Sketches-of-Russia-illustrated-with-fifteen- engravings-]-1831.jpg Coloured and monochrome versions of the same print
  9. 9. @j_w_baker pictures/1844/003172157-02-000207-1-Histoire-d-Angleterre-Nouvelle-e-dition- augmente-e-de-plus-d-un-tiers-et-e-1844.jpg pictures/1847/003323087-0-000225-1-A-New-and-Popular-Pictorial-Description-of- England-Scotland-Ireland-Wales-an-1847.jpg Cropped, rotated versions of the same image
  10. 10. @j_w_baker Hamming Distance The Hamming distance between: - “1rish” and “Irish” is 1. - “1011101” and “1001001” is 2 and is 1
  11. 11. @j_w_baker
  12. 12. @j_w_baker
  13. 13. @j_w_baker References Baumann, Ryan. ‘Finding Near-Matches in the Rijksmuseum with Pastec’. 3 November 2015. https://ryanfb.github.io/etc/2015/11/03/finding_near- matches_in_the_rijksmuseum_with_pastec.html Setting up Pastec as a Virtual Machine https://gist.github.com/drjwbaker/17351599854801f9891c7e0211eed32e Pastec http://pastec.io/doc/oss/ OpenCV http://opencv.org/ Visual Words https://en.wikipedia.org/wiki/Visual_Word ORB Feature Detection http://scikit-image.org/docs/dev/auto_examples/plot_orb.html Pastec develpers on their use of ORB www.willowgarage.com/sites/default/files/orb_final.pdf
  14. 14. Image Recognition with Pastec James Baker, Lecturer in Digital History/Archives University of Sussex @j_w_baker This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Exceptions: quotations, embeds from external sources, logos, and marked images.

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