Upload Image by Ctrl C and Ctrl V

I’m using another Blog and find a useful thing. If I wanna host an image from others’ web page to my own server, just select that image in webpage,Ctrl+C copy it and Ctrl+V paist to the input area, and press a button named “host the images”,then all the images will be uploaded to my server. I don’t have to save the image to my local hard disc first and upload it later. Is there any plug-in in wp can do this? Thanks.