Improver

This filter is similar in some respects to the 'Supersmooth' filter from set two; however, this one will usually perform better if you're trying to clean up a noisy image. It also allows a little controllable sharpening, and does a reasonable job of cleaning up JPG artifacts on over-compressed images.

	This image of Christina Aguilera (yet again) is quite grainy. Let's see if we can improve things a little.
	You will usually need to experiment with the settings to get best performance for any given image. The 'Edge sensitivity' slider, especially, is fairly critical - it controls the balance between smoothing of noise and sharpening of detail. In other words, too high a setting will cause the filter to sharpen the noise, which is not usually a good idea...
	The 'Portrait' and 'Landscape' buttons can be used to set all three sliders to sensible starting values for the corresponding style of image. Please note that the settings are not ideal, or even recommended - they're merely sensible starting points. This is the result from the default 'Portrait' settings.
	And here, for comparison, is the result from the default 'Landscape' settings. In this case, the filter has sharpened more agressively. Tip: With some images, it can be useful to apply the filter twice over, once at landscape and again at portrait settings. Tip: After clicking 'Portrait' or 'Landscape', zoom the preview image to 1:1 by holding down [Shift] and clicking the [+] button. Then, adjust the 'Edge sensitivity' and 'Sharpening' sliders to get the best balance between noise suppression and sharpening.