[IPOL discuss] ICC color profiles

[Miguel Colom]

Dear all,
these days we've been dealing with a weird problem with the Noise  
Clinic demo (still in development, not published). We denoised an  
image and the result was too dark. However, the values of the pixels  
very quite similar.

We found that this was caused since the input image had a ICC color  
profile [1] "ACER X233H" and the denoised image doesn't have any.  
Therefore, they show different.

Perhaps it'd be a good idea in the future to modify the io_png helper  
files to treat somehow the ICC color profiles. Or even better, that  
the demo system does.

Best,
Miguel

[1] http://www.libpng.org/pub/png/book/chapter10.html#png.ch10.div.7