InFocus is the latest product from Topaz Labs. The goal of InFocus is take an image and make it sharp as possible based on the quality of the original image. In some cases it can improve a slightly out-of-focus image clearer, but that doesn't mean that it is going to make a badly out-of-focus image come into focus — although there are some situations where it will try.
The real purpose of InFocus is two-fold. First it is an advanced sharpening product that uses its own proprietary technologies to make your in-focused images ultra-sharp. The second use is in forensic imaging. Here the goal is not to make a blurry image crystal clear, but rather to make a blurry image clear enough to identify specific details such as the ability to read a license plate number.
InFocus is considered a sharpening and deblurring solution. Topaz Labs have developed their own deconvolution technology to restore, refine, and sharpen image detail. Most sharpening methods detect the edges within an image and create more drastic tonal transitions, increasing the perceived sharpness and often producing harsh unappealing results.
InFocus uses image deconvolution technology to mathematically reverse image blur, increasing the actual sharpness. InFocus can enhance the clarity of an already well-focused image as well as deblur an out-of-focus or motion blurred image. They do this through a technique called Blur Estimation.
Many sharpening methods use unsharp masking. Unsharp masking detects the edges within an image and increases the perceived sharpness by creating more drastic tonal transitions (contrast boost). Sometimes this boost in edge contrast can produce harsh unappealing results.
Through the use of deconvolution, the attempt is to reverse the process that caused an image to be blurred. It is through this process that the sharpness is increased by reversing the causes of blur based on the likely origins of the distortions when the image was captured.