Copy Image from clipboard and paste into web page

Perhaps you need to clarify what you are asking. Do you want people using a browser in a client computer to be able to copy an image and then the image gets uploaded to the server? If so then it seems to me that the upload part needs a little work. I assume you could use code that uploads a file to instead upload an image from the clipboard. The data in the clipboard has a datatype associated with it so you will be able to determine if the data is in a useful format.