javascript - get base64 by filename to view -

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i saved name of files db, , store file in file server. can access file getting name , <img src='http://localhost/upload/abc.jpg'/> abc filename. how base64? because need actual file , pass somewhere.

if image on same domain, can canvas..

function getbase64image(img) {     var canvas = document.createelement("canvas");     canvas.width = img.width;     canvas.height = img.height;     var ctx = canvas.getcontext("2d");     ctx.drawimage(img, 0, 0);     return canvas.todataurl("image/png"); }  // if image on dom use var img = document.getelementbyid('img'); alert(getbase64image(img));  // if image isn't on dom this.. var img  = new image(); img.onload = function(){     alert(getbase64image(img)); } img.src= "http://my/image/url.png";

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