Noise Reduction Tools

[Michael Alonge]

Hello,

I have an image that I would like to do some smoothing over on. 

Lets say there is a faint red spot on a white background. I would like to 
apply some algorithm that will smooth over the red with the white pixels 
surrounding the red pixels.

I thought this would be an application for the noise reduction tools ...

http://scikit-image.org/docs/dev/auto_examples/plot_denoise.html 

... but the picture output looked the same as before.

What is the best algorithm for smoothing over pixels by re assigning a 
pixel value with the average value of the pixels surrounding it?

Thank you
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