"Cheung Koon Tung, Kent" wrote:

> 1. Dithering when the publication is produced
> 2. Anti-aliasing effect when the publication is produced
> 3. The "texture" of the publication paper
> I want to do automatic or semi-automatic pre-processing with GIMP so
> that the above three effects can be removed before my image analysis
> algorithm is applied.

You might want to try the non-linear filter (nlfilt). It is
designed to (on some settings) smooth out small variations
in colour, while not blurring edges between different colours.

David Hodson  --  [EMAIL PROTECTED]  --  this night wounds time

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