Assignment 2: Bitmap Filter

Create a filter plug-in for Paint.NET or some other image manipulation software. Implement one of the following, along with a user interface that contains appropriate controls such Intensity or Radius:

Sharpen the saturation
Blur the hue
Remove color noise

Here are ideas for completely different, larger stuff to do instead, if you aim at four points:

Create the look of crumpled paper, including a geometric deformation of the image's original content.
Blend several semitransparent, slightly rotated, scaled, shifted and color-changed copies of the image.
Create motion blur along a crooked line, resembling a photograph taken with a very long shutter time but no tripod.