Days ago being work in a process based in Python with the manipulation of the raws but I have a problem. I have two ways to work. The first is in the same Python with rawpy library, that's based in dcraw and work with numpy native, but the images which the ISO is high are process to much and the photo becomes white. The second way is with dcraw directly but the result is similar, the photos that taked in a "good" conditions creates a correct ppm but when the image is dark the results of the process turns the result in a soup of white noise that was not at the raw photo. The JPG directs of the camera are good (If the image are dark, the result is dark not a white noise).
The raws are DNG, I don't know if this is part of the problem.
So, the only thing I want is extract the matrix of pixels and work with them without this problems.
Anybody have an idea?
Thank you so much!