Applying an image-correction filter inside an image-editor to create the appearance of sharper focus [1] Too much sharpness can ruin an image
Sharpening is a software routine used to enhance detail in a CCD image There are numerous methods employed for sharpening images--there are even whole programs dedicated only to sharpening Some are simple sharpening routines, while others involve more complex algorithms (such as the unsharp mask technique), and some employ iterative routines to produce successively sharper images while attempting to minimize the noise inherently generated in sharpening (the Lucy-Richardson and similar techniques)