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brickpi-raspberry-watch

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var cv = require('opencv'); var cam = require('camelittle'); var c = new cam({ controls: { 'Brightness': 125, 'Contrast': 125, 'Saturation': 125, } }); function scan(callback) { if (callback === null) { console.log('callback required'); return; } c.grab({ device: '/dev/video0', resolution: '640x480', }, function(err, image) { if (err) { callback(null, err); return; } if (image == null) { callback(null, err); return; } cv.readImage(new Buffer(image, 'binary'), function(err, im) { if (err) { callback(null, err); return; } if (!((im.size()[0]>0) && (im.size()[1]>0))) { callback(null, err); return; } im.convertGrayscale(); var circles = im.houghCircles(1, 1000, 100, 100, 10, 1000); console.log(circles); if (circles == null) circles = []; callback(circles, null); }); }); } exports.scan = scan;