Enlarging low-resolution images for publication or large-format output can be a real challenge.Most professional photographers would rather retake the shot.Art directors and editors frequently kill an otherwise usable photo,simply because the resolution isn't high enough.Sometimes there's no alternative to up-resing the image on hand.Early Adobe Photoshop users discovered that low-res images could be successfully up-resed if it were done in increments rather than all at once.Users could open the Image Size dialog and increase the image resolution 5 to 10 percent at a time,until they reached the desired resolution.This method got the job done,but the enlarged images often displayed pixelation and other defects.
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