π nuxt-multiQR-study γ§ opencv.js γ detectAndDecodeMulti γζγγͺγγγ¨γ«ε€±ζγγ¦ Python γΈγγ£γ¦γγγ detectAndDecodeMulti γγ‘γγγ¨δ½Ώγγ¦θ―γγ£γγγ©γι£η΅ QR γ³γΌγγ«γ―ε―ΎεΏγγ¦γγͺγγγ¨γεγγ£γγ