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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-heise...
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Tomoki Ishimaru
March 14, 2019
Programming
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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
Tomoki Ishimaru
March 14, 2019
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Transcript
RubyͰը૾ϑΝΠϧ͔Β ༷ʑͳΦϒδΣΫτΛݕग़͢Δ 2019/03/14 ฏ.rb #2 @MedPeer, Inc. Tomoki Ishimaru /
@thom_i40
ࣗݾհ • Tomoki Ishimaru • GMO AD Marketing Inc. •
ϑϩϯτΤϯυ / αʔόʔαΠυ • झຯԻָͱࣸਅͱΔ͜ͱ @thom_i40
ࠓ͢͜ͱ • ը૾ॲཧϥΠϒϥϦʮOpenCVʯͷ֓ཁ • ruby-opencvͷ֓ཁ • ruby-opencvΛ༻͍ͨମೝࣝ • ruby-opencvΛ׆༻ͨ͠Ռ
ࠓ͞ͳ͍͜ͱ • ಈըͷೖग़ྗ੍ޚ • ػցֶशͱOpenCV • ruby-opencvͷΈ • ίϯϐϡʔλϏδϣϯͷΈ
None
• Πϯςϧ͕։ൃ • Φʔϓϯιʔεͷը૾/ө૾ॲཧϥΠϒϥϦ • ΫϩεϓϥοτϑΥʔϜࢦͰઃܭ • C++, Java, Python,
MATLABΛαϙʔτ • ༷ʑͳόΠϯσΟϯά͕ଘࡏ OpenCV
ruby-opencv • Ruby༻ͷOpenCVϥούʔ • Ruby 2ܥ / OpenCV 2.4.13Λαϙʔτ •
RubyDoc.infoͰυΩϡϝϯτΛఏڙ https://www.rubydoc.info/gems/ruby-opencv/frames
ڥߏங(OS X) • HomebrewͰOpenCVΛΠϯετʔϧ • gem install Ͱ ruby-opencv Λಋೖ
https://github.com/ruby-opencv/ruby-opencv
ࠓճհ͢Δػೳ • إݕग़ • ԁݕग़ • ઢݕग़ • දతͳը૾ॲཧػೳ •
ςϯϓϨʔτϚονϯά
άϨʔεέʔϧ / ೋԽॲཧ src = CvMat.load('Sailboat.bmp') gray = src.BGR2GRAY bin
= gray.threshold(128, 255, :binary)
ԁݕग़
ԁݕग़
HaarྨثʹΑΔإݕग़
HaarྨثʹΑΔإݕग़
HaarྨثʹΑΔإݕग़ ͨͬͨߦͰ࣮Մೳ
ઢݕग़
ઢݕग़
ςϯϓϨʔτϚονϯά
ςϯϓϨʔτϚονϯά
ࠓճ࡞ͬͨՌ
ָේը૾͔ΒϝϩσΟΛநग़
ָේը૾͔ΒϝϩσΟΛநग़
ָේը૾͔ΒϝϩσΟΛநग़
ͬͨػೳ
ೋԽॲཧ
ઢݕग़
ςϯϓϨʔτϚονϯά
ϝϩσΟΛநग़
·ͱΊ • OpenCVʹ͍ͭͯհͨ͠ • ruby-opencvΛ༻͍ͨମݕग़ʹ͍ͭͯհͨ͠ • ָේը૾͔ΒϝϩσΟΛநग़͢ΔγεςϜΛ࡞ͬͨ • RubyͰجຊతͳը૾ೝ͕ࣝͰ͖Δ͜ͱ͕Θ͔ͬͨ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ @thom_i40