... <input type="file" name="imagem_upload" id="id_foto"> <div id="img2"></div> ...
CSS:
#img2 {
width: 80px; height: 80px;
background: url(imagem-padrao.jpg) no-repeat center center;
background-size: cover;
position: absolute;
top: 50%; left: 50%;
margin-left: -40px;
margin-top: -40px;
border-radius: 50%;
border: 5px solid #fff;
z-index: 1;
}
JAVASCRIPT:
$('#id_foto').live('change', function(){
var input = document.getElementById("id_foto");
var fReader = new FileReader();
fReader.readAsDataURL(input.files[0]);
fReader.onloadend = function(event){
$("#img2").css('background', 'url('+event.target.result+') no-repeat center center');
$("#img2").css('background-size', 'cover');
}
});