Our Client has bought supersize images ( 18.7MB ) size 23.38583 x 17.3228 @ 300DPI from shutterstock and want us to print wall murals for their office walls. When we blowup the images its becoming really pixalated. wall size is 270" w x 113". viewing distance will be 3 -4 ft. Is there any photo enhancing software we need to buy ? or if you have any photoshop tricks that can work. please help setting up these images for production. we will print these wall murals on Roland XR-640. we are using colorgate rip software.
What I've found is that it depends on the image how well it will look at a lower PPI. For instance, if its a distance shot, like a landscape with no close up detail, I can start with a large high resolution file that turns out beautiful at 60-72 ppi at full scale up to around 8' x 12'. If there is close up detail in the image, it doesn't turn out as well.
We recently did a makeover on our graphics department and put up alot of 8'x8' murals and 4'x8' graphics with images I found on
http://all-free-download.com/free-photos/ . I did searches for High Resolution, High Definition, High Def and spent alot of time wandering through the results and got some amazing images that scaled up great. Granted, at the size your talking about printing, even these may not work. Sounds like a photographer would need a terapixel camera to get a photograph that would scale that size.
http://www.gigamacro.com/terapixel/
I would see if you could talk your client into Illustrations instead of a single photograph, or even do multiple smaller images. You have to remember also that with an image that large, and a viewing distance that small, they won't be able to tell what they're looking at until they are able to stand way back from it, and I would imagine this is in an enclosed area like a hallway since the viewing distance is so small. If you find a source for big images like that let me know... I'd be interested in checking it out for our clients that have 8' x 40+' tradeshow backwalls. Good Luck