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denoise/edge detect

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denoise/edge detect Ben Thurston 02 Oct 11:31
  denoise/edge detect Bill Skaggs 02 Oct 15:57
Ben Thurston
2013-10-02 11:31:43 UTC (over 10 years ago)

denoise/edge detect

I found this algorithm to try and remove noise from a picture, but it seems to also work as an edge detector... it seems to yield different results on my sample image than any of the edge detectors built into gimp, so I thought maybe it would be interesting. I'll be monitoring if anyone feels like discussing it...
http://benpaulthurstonblog.blogspot.com/2013/10/separating-noise-from-information-in.html

Bill Skaggs
2013-10-02 15:57:35 UTC (over 10 years ago)

denoise/edge detect

Basically what you are doing is running Difference of Gaussians, followed by thresholding, then Difference of Gaussians again, then thresholding. The parameter settings you use work for the image you created, but I doubt that they will be very robust.

Bill

On Wed, Oct 2, 2013 at 4:31 AM, Ben Thurston wrote:

I found this algorithm to try and remove noise from a picture, but it seems to also work as an edge detector... it seems to yield different results on my sample image than any of the edge detectors built into gimp, so I thought maybe it would be interesting. I'll be monitoring if anyone feels like discussing it...

http://benpaulthurstonblog.blogspot.com/2013/10/separating-noise-from-information-in.html _______________________________________________ gimp-developer-list mailing list
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