T. Modes <[email protected]> schrieb am Di. 23. Juni 2020 um 19:46:
> > > Am Dienstag, 23. Juni 2020 03:56:03 UTC+2 schrieb Alister Ling: >> >> There are two pairs of bracketed images which may be confusing things. >> i.e. I have 2 stacks in there. I can't seem to find the right stitch tab >> check boxes that will give me useful output. The output is really bad if I >> click calculate photometrics (in part because all the images were not taken >> with the same exposure settings?) - but I thought this was what Hugin could >> handle. >> > Normally, Hugin can handle this. But in this case - where the images are > mainly dark - it has too less information to calculate vignetting factors. > But you can use another project with an higher dynamic range, store the > vignetting parameters there in an ini file or in the lens database and load > these parameters then in the other project. > You could try the following: Put a white T-Shirt In front of your lens, shine with a white lamp on the T-shirt and take a few pictures. This needs the same stop, but otherwise you can let the camera decide on iso and exposure. This is called a “flat” by astrophotographers. Either Hugin is able to use these for calculating vignetting factors or: Using Fitswork, or similar software, divide your Image by the flat (pixel wise). More Information on using flats for vignetting correction can be found in DeepSkyStacker’s documentation. Hope this helps, Jens > -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/CADfVb54YctxiT0myM6Ba9FWn-RE7CNLpb0UzUc%3Dmhf5GM6xCBg%40mail.gmail.com.
