Rubyで画像ファイルから様々なオブジェクトを検出する / ruby-opencv-heiseirb-2

1. RubyͰը૾ϑΝΠϧ͔Β ༷ʑͳΦϒδΣΫτΛݕग़͢Δ 2019/03/14 ฏ੒.rb #2 @MedPeer, Inc. Tomoki Ishimaru / @thom_i40
2. ࣗݾ঺հ • Tomoki Ishimaru • GMO AD Marketing Inc. • ϑϩϯτΤϯυ / αʔόʔαΠυ • झຯ͸Իָͱࣸਅͱ૸Δ͜ͱ @thom_i40
3. ࠓ೔࿩͢͜ͱ • ը૾ॲཧϥΠϒϥϦʮOpenCVʯͷ֓ཁ • ruby-opencvͷ֓ཁ • ruby-opencvΛ༻͍ͨ෺ମೝࣝ • ruby-opencvΛ׆༻ͨ͠੒Ռ෺
4. ࠓ೔࿩͞ͳ͍͜ͱ • ಈըͷೖग़ྗ΍੍ޚ • ػցֶशͱOpenCV • ruby-opencvͷ࢓૊Έ • ίϯϐϡʔλϏδϣϯͷ࢓૊Έ
6. • Πϯςϧ͕։ൃ • Φʔϓϯιʔεͷը૾/ө૾ॲཧϥΠϒϥϦ • ΫϩεϓϥοτϑΥʔϜࢦ޲Ͱઃܭ • C++, Java, Python, MATLABΛαϙʔτ • ༷ʑͳόΠϯσΟϯά͕ଘࡏ OpenCV
7. ruby-opencv • Ruby༻ͷOpenCVϥούʔ • Ruby 2ܥ / OpenCV 2.4.13Λαϙʔτ • RubyDoc.infoͰυΩϡϝϯτΛఏڙ
 https://www.rubydoc.info/gems/ruby-opencv/frames
8. ؀ڥߏங(OS X) • HomebrewͰOpenCVΛΠϯετʔϧ • gem install Ͱ ruby-opencv Λಋೖ https://github.com/ruby-opencv/ruby-opencv
9. ࠓճ঺հ͢Δػೳ • إݕग़ • ԁݕग़ • ௚ઢݕग़ • ୅දతͳը૾ॲཧػೳ • ςϯϓϨʔτϚονϯά
10. άϨʔεέʔϧ / ೋ஋Խॲཧ src = CvMat.load('Sailboat.bmp') gray = src.BGR2GRAY bin = gray.threshold(128, 255, :binary)
11. ԁݕग़
12. ԁݕग़
13. Haar෼ྨثʹΑΔإݕग़
14. Haar෼ྨثʹΑΔإݕग़
15. Haar෼ྨثʹΑΔإݕग़ ͨͬͨ਺ߦͰ࣮૷Մೳ
16. ௚ઢݕग़
17. ௚ઢݕग़
18. ςϯϓϨʔτϚονϯά
19. ςϯϓϨʔτϚονϯά
20. ࠓճ࡞ͬͨ੒Ռ෺
21. ָේը૾͔ΒϝϩσΟΛநग़
22. ָේը૾͔ΒϝϩσΟΛநग़
23. ָේը૾͔ΒϝϩσΟΛநग़
24. ࢖ͬͨػೳ
25. ೋ஋Խॲཧ
26. ௚ઢݕग़
27. ςϯϓϨʔτϚονϯά
28. ϝϩσΟΛநग़
29. ·ͱΊ • OpenCVʹ͍ͭͯ঺հͨ͠ • ruby-opencvΛ༻͍ͨ෺ମݕग़ʹ͍ͭͯ঺հͨ͠ • ָේը૾͔ΒϝϩσΟΛநग़͢ΔγεςϜΛ࡞ͬͨ • RubyͰ΋جຊతͳը૾ೝ͕ࣝͰ͖Δ͜ͱ͕Θ͔ͬͨ
30. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ @thom_i40