On mercredi 1 mars 2017 15:56:57 CET [email protected] wrote: (...) > > I would prefer first merge, then use DT. I can easyly convert the raw > image to 16-bit TIFFs without any processing. > (...)
Well, no, you can't: if you generate a TIFF from your raw, you'll have at least set the raw black and white point, aplied a demosaicing, an auto(?) white balance setting, and converted to a colour space. You might even have an exposition correction applied (depending on how you do the raw conversion). If you first do the conversion in DT, you can make sure that all the images get the exact same development, which will make combining the images much easier. Especially the WB setting is critical, as it determines the overall colour tone of your image. So setting this identical for all images of the series helps in getting a seamless merge. What I do in such cases is: pick a typical image (usually the brightest one where I don't want highlight clipping) and develop it more or less normally. Make sure the white balance is set to *manual* (you can use the values auto WB gives you). Then, in the light table, I copy the history stack of this image to all the others in the series, and export the whole series as 16-bit PNG. (PNG tends to be a lot smaller than TIFF, with no loss in functionality for this use). ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
