Smart enhance of frame sharpness

Contact person: Dmitriy S. Vatolin (dmitriy@graphics.cs.msu.ru)

MSU Graphics & Media Lab (Video Group)

The filter allows to enhance image and video sharpness with minimum noise amplification. The algorithm preserves already sharp areas of image without creating additional artifacts. Sharpening is done in area of middle frequencies, that allows not to amplify existed noise.

Examples

Let's feed the filter a portrait of M. Lomonosov and study the results.

Source image Image processed by Smart Sharpen Filter

Now let us zoom in to see the differences better:

A fragment of source image The fragment processed by Smart Sharpen Filter

Another example uses the Astronaut test image.

Source image Image processed by Smart Sharpen Filter

Consider the following zoomed fragment of the image:

A fragment of source image The fragment processed by Smart Sharpen Filter

And another fragment of Astronaut image:

A fragment of source image The fragment processed by Smart Sharpen Filter

Download

Filter for VirtualDub MSU Smart Sharpen (36 KB, ZIP)
Unpack this file in the folder "Plugins" in VirtualDub directory to use.

See also

Detailed description of MSU Smart Sharpen filter

Team

  • Dmitriy S. Vatolin, Lomonosov Moscow State University
  • Maxim Mahinia
  • Denis Kubasov
  • Alexey Moskvin