[Image-SIG] Remove noise from high ISO photos

Carlos da Silva Santos carlos.s.santos at gmail.com
Wed Dec 19 13:18:13 CET 2007


I don't know much about high ISO noise, but a standard way of removing
noise while preserving edges is using a median filter:

If your goal is only running the whole pipeline from python, you might
install the python bindings for Gimp and try to use the Gimp filter
from python.

I hope this helps.



On Dec 19, 2007 2:05 AM, Daniel Felix Ferber
<danielsforummail at terra.com.br> wrote:
> Hi!
> I was wondering if PIL has a filter or enhancement in order to remove
> noise from photos that were taked with high ISO. Gimp and ImageMagic
> both have such a feature and it work very good.
> I tried to use SMOOTH or SMOOTH_MORE filter. But there are better
> strategies to remove high ISO noise that try to preserve sharpness of
> the image.
> Currently I am calling ImageMagic from within my python script, but I
> would prefer if PIL would handle it. Is this possible in current version
> of PIL?
> Best regards,
> Daniel Ferber
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> Image-SIG maillist  -  Image-SIG at python.org
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