“We all resize images quite frequently, but more times than not the result is not what we want. Either the image doesn’t scale correctly, or we are forced to crop off content that we would otherwise want to have. A solution for this problem might be just around the corner.”
Source: CyberNet News
I found this video on this site. It shows/describes how an image can be resized dynamically and also how certain aspects of the image can be erased. At the moment this is just a research project but the possibilities for including this within web browsers mean that images could be scaled with a page when a window is resized.