We're getting this error when trying to load some of out projects images:
   
    libpng warning: iCCP: known incorrect sRGB profile

The source files that we have some with incorrect sRGB profiles. We don't have 
control over the source files, but what we normally do is take them and scale 
them down for our own project. To fix this issue, we can use this shell 
one-liner:

    find . -type f -name "*.png" -exec convert {} {} \;

Which basically converts the ONGs into themselves, but it strips the profile 
(or maybe overwrites with a correct profile).

We would like to incorporate this functionality into our python script which 
scales the source images, but we haven' found a way to do this. Any thoughts?

    
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