Contraction doesn't really make images blurry, only if it is by a massive amount, and that would only be because a larger image would go to much greater detail, and while if you manually made a smaller version of said image, you'd only include specific details, so it still retains the same look, the computer doesn't know which of said pixels to delete, and which to keep, so it doesn't create a perfect smaller version.
For example, my avatar would have been shrunk, and it's not really blurry, the only big problem that I'd notice is that the small stars look much more like Dots, than 5 pointed stars.
(Yes, unless we're showing off a cool new device we invented, the word is Contraction, not Contraption.)