How to upload image that is nested in img-element of the page (i.e. image was dynamically created with canvas2image jQuery plugin)? I have found uploadify plug-in, but don't know how to utilize it in this case. Should I create file input element with jQuery that will be used by uploadify?
You could send the pixel data (obtained via getImageData()) to your server via XHR and recreate the image on your server.