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

by Tomoki Ishimaru

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RubyͰը૾ϑΝΠϧ͔Β ༷ʑͳΦϒδΣΫτΛݕग़͢Δ 2019/03/14 ฏ੒.rb #2 @MedPeer, Inc. Tomoki Ishimaru / @thom_i40

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ࣗݾ঺հ • Tomoki Ishimaru • GMO AD Marketing Inc. • ϑϩϯτΤϯυ / αʔόʔαΠυ • झຯ͸Իָͱࣸਅͱ૸Δ͜ͱ @thom_i40

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ࠓ೔࿩͢͜ͱ • ը૾ॲཧϥΠϒϥϦʮOpenCVʯͷ֓ཁ • ruby-opencvͷ֓ཁ • ruby-opencvΛ༻͍ͨ෺ମೝࣝ • ruby-opencvΛ׆༻ͨ͠੒Ռ෺

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ࠓ೔࿩͞ͳ͍͜ͱ • ಈըͷೖग़ྗ΍੍ޚ • ػցֶशͱOpenCV • ruby-opencvͷ࢓૊Έ • ίϯϐϡʔλϏδϣϯͷ࢓૊Έ

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• Πϯςϧ͕։ൃ • Φʔϓϯιʔεͷը૾/ө૾ॲཧϥΠϒϥϦ • ΫϩεϓϥοτϑΥʔϜࢦ޲Ͱઃܭ • C++, Java, Python, MATLABΛαϙʔτ • ༷ʑͳόΠϯσΟϯά͕ଘࡏ OpenCV

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ruby-opencv • Ruby༻ͷOpenCVϥούʔ • Ruby 2ܥ / OpenCV 2.4.13Λαϙʔτ • RubyDoc.infoͰυΩϡϝϯτΛఏڙ  https://www.rubydoc.info/gems/ruby-opencv/frames

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؀ڥߏங(OS X) • HomebrewͰOpenCVΛΠϯετʔϧ • gem install Ͱ ruby-opencv Λಋೖ https://github.com/ruby-opencv/ruby-opencv

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ࠓճ঺հ͢Δػೳ • إݕग़ • ԁݕग़ • ௚ઢݕग़ • ୅දతͳը૾ॲཧػೳ • ςϯϓϨʔτϚονϯά

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άϨʔεέʔϧ / ೋ஋Խॲཧ src = CvMat.load('Sailboat.bmp') gray = src.BGR2GRAY bin = gray.threshold(128, 255, :binary)

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ԁݕग़

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ԁݕग़

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Haar෼ྨثʹΑΔإݕग़

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Haar෼ྨثʹΑΔإݕग़

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Haar෼ྨثʹΑΔإݕग़ ͨͬͨ਺ߦͰ࣮૷Մೳ

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௚ઢݕग़

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௚ઢݕग़

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ςϯϓϨʔτϚονϯά

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ςϯϓϨʔτϚονϯά

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ࠓճ࡞ͬͨ੒Ռ෺

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ָේը૾͔ΒϝϩσΟΛநग़

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ָේը૾͔ΒϝϩσΟΛநग़

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ָේը૾͔ΒϝϩσΟΛநग़

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࢖ͬͨػೳ

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ೋ஋Խॲཧ

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௚ઢݕग़

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ςϯϓϨʔτϚονϯά

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ϝϩσΟΛநग़

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·ͱΊ • OpenCVʹ͍ͭͯ঺հͨ͠ • ruby-opencvΛ༻͍ͨ෺ମݕग़ʹ͍ͭͯ঺հͨ͠ • ָේը૾͔ΒϝϩσΟΛநग़͢ΔγεςϜΛ࡞ͬͨ • RubyͰ΋جຊతͳը૾ೝ͕ࣝͰ͖Δ͜ͱ͕Θ͔ͬͨ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ @thom_i40