kfj schrieb am Mittwoch, 30. Juni 2021 um 23:05:13 UTC+2: > I saw hugin produce such pgm files, and I could never figure out why they > would be needed: the exr should have all the nececssary information, > because it holds linear RGBA. What's the pgm good for? >
In Hugins HDR workflow all input images are remapped to the output projection. In the same time they are converted into the same linear colorspace - it corrects the exposure, vignetting (and also white balance). But then the information about under- and over exposed pixels is lost. This information is transferred to hugin_hdrmerge with the _gray.pgm files and helps to merge the individual images. -- 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/ba9e3449-05f9-40cc-8e4b-0d8d018904b1n%40googlegroups.com.
