If you can you can use adobe illustrator to vectorize the image,
http://www.youtube.com/watch?v=YshszsgXPag might be useful
Lderan
On 21 July 2011 23:03, Adam Egan <adam.egan(a)gmail.com> wrote:
 Hi list...
 A friend of mine has an image that he would like blown up to be put
 onto some huge boards/canvas things.
 In order for this to work the resolution of the image needs to be
 increased a lot.
 Does anybody know much about how that would be done?
 Adam
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