Legacy ImageMagick Discussions Archive

I'm not sure I quite understand what you mean by "multiplies each of the four colour values". If you supply "-r", such as "-r 1 1 1 1", the values from the RGBG sensors are multiplied by those values. Exiftool can give you the multipliers that are stored in the file's metadata, in RBGG order, eg WB ...

That looks good, with a couple of qualifications. 1. I'm not sure exactly what you want. 2. You have "-d" without "-D", but I'm not sure what that does. I think it combines the values from each group of four sensor pixels (each of which records only one of red, green or blue), multiplies each of ...

I've read on these forums that it is read by default as linear ... Well, things have changed in the last 8 years. You can create your own entry in delegates.xml with whatever dcraw options you want. ... we simply use only the red pixels - I don't need any interpolation at all So you don't want to ...

Great, thanks a ton! I think that's all I need

Hi guys, Question: I'm starting to do some (computational, mathematical) research on images, and I need to be sure that the colour space is loaded from my NEF files "linearly". This is causing me some difficulty, so any help would be hugely appreciated. Here is the output of convert -version ...