gistfile1.js

function snapshot() {
	$("#result").html("<p><i>Working hard for the money...</i></p>");

	canvas.width = video.videoWidth;
	canvas.height = video.videoHeight;
	canvas.getContext('2d').drawImage(video, 0, 0);

	var data = canvas.toDataURL('image/jpeg', 1.0);
	newblob = dataURItoBlob(data);

	var formdata = new FormData();
	formdata.append("api_key", faceKey);
	formdata.append("api_secret", faceSecret);
	formdata.append("filename","temp.jpg");
   
	formdata.append("file",newblob); 

	$.ajax({
	   url: 'http://api.face.com/faces/detect.json?attributes=age_est,gender,mood,smiling,glasses',
   	   data: formdata,
	   cache: false,
	   contentType: false,
	   processData: false,
	   dataType:"json",
	   type: 'POST',
	   success: function (data) {
	       	handleResult(data.photos[0]);
	   }

	});    
}