$("#imgDiv img").each(function () {

    var img = $(this);

    var img_src = img.attr("src") + "?" + Math.random();

    var frameid = "frameimg" + Math.random();

    var image = new Image();

    image.src = img_src;

    image.onload = function () {

        window.img = '<img id="img" src=\'' + img_src + '\'/>';

        window.img += '<style></style>';

        window.img += '<script>window.onload=function(){';

        window.img += 'parent.document.getElementById(\'' + frameid + '\').height=document.getElementById(\'img\').height+\'px\'';

        window.img += 'parent.document.getElementById(\'' + frameid + '\').width=document.getElementById(\'img\').width+\'px\'';

        window.img += '}<' + '/script>';

        img.parent().append('<iframe width="' + image.width + 'px" height="' + image.height + 'px" id="' + frameid + '" src="javascript:parent.img" frameBorder="0" scrolling="no"></iframe>');

        img.remove();

    }

});

<meta name="referrer" content="never">

$("#imgDiv img").each(function () {

    var img = $(this);

    var img_src = img.attr("src") + "?" + Math.random();

    var frameid = "frameimg" + Math.random();

    var image = new Image();

    image.src = img_src;

    image.onload = function () {

        var ff = 1;

        if (image.width > 800) {

            ff = 800 / image.width;

            image.width = 800;

        }

        window.img = '<img style="max-width:800px" id="img" src=\'' + img_src + '\'/>';

        window.img += '<style></style>';

        window.img += '<script>window.onload=function(){';

        window.img += 'parent.document.getElementById(\'' + frameid + '\').height=document.getElementById(\'img\').height+\'px\'';

        window.img += 'parent.document.getElementById(\'' + frameid + '\').width=document.getElementById(\'img\').width+\'px\'';

        window.img += '}<' + '/script>';

        img.parent().append('<iframe style="display:block;margin:0px auto;overflow:hidden;width:' + image.width + 'px;"  height="' + image.height * ff + 'px" id="' + frameid + '" src="javascript:parent.img" frameBorder="0" scrolling="no"></iframe>');

        img.remove();

    }

});