getFaces
face recognition -- get faces position from canvas or image or video.
##GetFaces
1、type
function
2、arguments:
videoOrImageOrCanvas: video/image/canvas对象
option: {
interval: 4,
minNeighbors: 1,
grayscale: false,
confidence: null,
};
successCallback: 成功回调;
errorCallback: 失败回调;3、call
GetFaces(canvas,{//options
interval: 4,
minNeighbors: 1,
grayscale: false,
confidence: null
},function(faces){//成功回调
var n = faces.length;
for (var i = 0; i < n; ++i) {
context.save()
context.lineWidth = 1;
context.strokeStyle = "red";
context.strokeRect(faces[i].x-20,faces[i].y-20,faces[i].width+40,faces[i].height+40);
context.restore()
}
},function(err){//失败回调
console.log(err)
})