On 17/12/10 20:23, Liam R E Quin wrote:
> On Thu, 2010-12-09 at 09:35 +1100, Jan Smith wrote:
>> Hi,
>> What are the best GIMP tools for sharpening?
>> Is there a time when someone would use Sharpen instead of Unsharp Mask?  To
>> me GIMP's Unsharp Mask has a better range and control.
> For example, after down-scaling an image, sharpen of 20% can work well.
> Unsharp tends to introduce artifacts if overdone.

Yes, I recently had an image, badly lit photo of a page of text that was 
difficult to improve with unsharp. Basic sharpen worked better.

Unsharp is not always the better filter.


> After scanning a greyscale engraving I sometimes do a gaussian blur
> followed by a sharpen at 80% or so. THis works better than
> colours->threshold if you're going to scale down the image.
>> Will Wavelet Sharpen be included in GIMP 2.8? I find the Luminance setting
>> gives even better results than Unsharp Mask.
> Which one are you using?  It's not so much the goal to reduce the
> number of plugins as to get rid of bad ones and replace them
> with better ones..
> Liam

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