I'm using the Twenty Twelve theme and I want to set the header image for each page. I have successfully uploaded several images and have enabled the custom header, but the choices under Twenty Twelve don't apparently allow me to set the header at a page-by-page level (it applies across all - or can be set to random across all). It looks like this might be possible under other themes, but I really like Twenty Twelve (especially on an iPad). Is there a way to do this without becoming a Web programmer?
The blog I need help with is vivendoladolcevita.com.