replace输出的图片，会放大1倍

[loje]

`function original(){
$("#cutpic").attr("src",localStorage.getItem("cutpic"));
}

$(document).ready(function(){
original();

var pic = document.getElementById("cutpic");

pic.loadOnce(function(){
    var AIObj = AlloyImage(this);//初始化一个图层
    var origin = AIObj.clone();//克隆一个初始化图层

    var that = this;
    $(".emo1").click(function(){
        origin.replace(that);
    });

    $(".emo2").click(function(){
        AIObj.undoView().replace(that);
        AIObj.view("灰度处理").replace(that);
    });

    $(".emo3").click(function(){
        AIObj.undoView().replace(that);
        AIObj.view("反色").replace(that);
    });
})

})`

请问是什么问题呢？