Images need more space than text because images encode far more non-textual information. Sure, an image of standard font/m face/size/weight/color text has low

Images need more space than text because images encode far more non-textual information. Sure, an image of standard font/m face/size/weight/color text has low information, because it's only using asymptotically 0% of it's expressive power. Just look at how a logo conveys more information just by styling text.