webcam face detection bounding box · Issue #177 · justadudewhohacks/face-api.js · GitHub
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Solved In the Moving Face web page (see below), the moveUp | Chegg.com
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Drawing Code
clearRect() method in HTML5 Canvas - wikitechy
JS初心者がCanvasを使っていたらぶち当たった壁 - Qiita
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JavaScriptで画面更新 - ループの方法。｜donguri
