But if you??™re printing a 20?—30-inch
poster that??™s going to hang on the wall, 200dpi is probably fine. In fact, you might even be able
to get away with 150dpi. Why? People won??™t get as close to the photo, so the greater viewing
distance will make it harder to see individual pixels. So remember that the farther you stand from
a picture, the lower the print resolution can be.
376 How to Do Everything: Digital Camera
Increase Print Size with Resampling Software
Need to print an image at a certain size??”like 8?—10 inches, for instance??”but don??™t have nearly
enough pixels to make the picture come out sharp? Or perhaps you have a 6-megapixel picture
that you want to crop down to a much smaller size, yet still turn it into a poster. You might want
to try resampling the picture with a program like Genuine Fractals or pxl SmartScale.
Programs like these can digitally enlarge your image while preserving quality using a complicated
mathematical procedure that does a pretty good job of reducing noise and digital artifacts.
Make no mistake: these programs aren??™t magical and can??™t add information to a picture
that wasn??™t there to begin with. But they can sometimes do an amazing job nonetheless. In my
experience, you can often increase the size of a photo by several factors with little to no visible
loss in print quality.
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