how to make bitmap images larger without quality loss?

[mysticm]

I have a logo that I made awhile back, however the quality is only web quality at 72dpi and small size of 600x198. I want to be able to print a huge banner at least 600 dpi quality. How (the easiest and fastest way) do I acheive making the bitmap image (which I have in psd and jpg formats) larger without loss of quality or even better quality? Do I have to convert the image to vector form and then largen it? How do I do it? Or is there another way to largen it without transfering it to vector form first? Thanks!

[doctorgonzo]

Expanding a bitmap image is going to make it look more blocky, there is no way around that. Converting it to vector format would help, but that is no small task. Depending on the source of the image, it may be easier to just rescan it at a higher resolution for example.

[mysticm]

Originally Posted by doctorgonzo Expanding a bitmap image is going to make it look more blocky, there is no way around that. Converting it to vector format would help, but that is no small task. Depending on the source of the image, it may be easier to just rescan it at a higher resolution for example.

Unfortunately, I do not have the image elsewhere just the web graphic. How to convert it to vector image and enlarge?

[doctorgonzo]

That's a toughie. Most software for this is expensive, and everything is time-consuming. This seems to have a freeware version. Good luck.