Powerfull, good work with 'opencv4nodejs'

cozmo / jsQR

A pure javascript QR code reading library. This library takes in raw images and will locate, extract and parse any QR code found within.

https://cozmo.github.io/jsQR/

Apache License 2.0

3.64k stars 602 forks source link

Powerfull, good work with 'opencv4nodejs' #188

Closed pedefe closed 3 years ago

pedefe commented 3 years ago

Hi, I have integrated jsQR with 'opencv4nodejs' and this works very well. Conversion from OpenCv is :

let dstReduced = mat.resize( new cv4.Size(0,0), 0.3, 0.3);
let dstRGBA = dstReduced.cvtColor( cv4.COLOR_BGR2RGBA);
let code = jsQR( dstRGBA.getData(), dstRGBA.cols, dstRGBA.rows, undefined);

As you see, from original image (640x480), I resize image from 1/3., QrCode recognition duration changes from 1 second to 60ms. Great again. Best regards

cozmo commented 3 years ago

Thanks! Love to hear it, and it's neat how simple of a drop in it was.

If I understand correctly, there is not actually an issue here, and as such I'm going to close this, but thanks for sharing :)