Blur/Sharpen Tool

Message 224 of 316

The Convolve tool uses the current brush to locally blur or sharpen your image. Blurring with it can be useful if some element of your image stands out too much, and you would like to soften it. If you want to blur a whole layer, or a large part of one, you will probably be better off using one of the Blur Filters. The direction of a brushstroke has no effect: if you want directional blurring, use the Smudge tool.

In "Sharpen" mode, the tool works by increasing the contrast where the brush is applied. A little bit of this may be useful, but overapplication will produce noise. Some of the Enhancement Filters, particularly the Unsharp Mask, do a much cleaner job of sharpening areas of a layer.

Let's see if we can sharpen our knowledge of the blur tool inside...

posted by GaryJames

Gimp Documentation:
Check out the excellent tip in this documentation.

posted by GaryJames
over 2 years ago

ToolTip You can create a more sophisticated sharpening brush using the Clone tool. To do this, start by duplicating the layer you want to work on, and run a sharpening filter, such as Unsharp Mask, on the copy. Then activate the Clone tool, and in its Tool Options set Source to “Image source” and Alignment to “Registered”. Set the Opacity to a modest value, such as 10. Then Ctrl-click on the copy to make it the source image. If you now paint on the original layer, you will mix together, where the brush is applied, the sharpened version with the unsharpened version.

This little tip will be very useful for me.

posted by GaryJames
over 2 years ago

I posted the above tip as a ToolTip and included examples as a reply. view link

posted by GaryJames
over 2 years ago