I’m not sure if I’m using HDRMerge incorrectly or this is a bug, but when I merge 3 files, EV 0, EV -1, and EV +1, the resulting output appears to be just the EV -1 image. I’m using a build on MacOS that I built from github, which I believe is up to date at commit cb42a8b if I’m reading the log correctly.
I’m using RawTherapee’s Neutral profile to compare, and the histograms appear to be almost identical between the darkest image and the HDR result - the brighter pictures clearly show the histogram moving to the right. I think this a valid way to compare the files.
I guess my assumption of how this works is that I would expect the foreground to be the brightest image, and then when the brightest image starts to clip/get close to clipping, it would use the next darker image. Is this correct?
The mask does seem to show the brightest image used in the foreground though, and then in the clouds in my test image, it goes to the other two images in bright areas. This matches up with how I would expect it to work.
I’ll upload the result DNG file, but I don’t think I can upload more than one file yet so I can’t get the source files up (yet, anyway).
As a side note, I was very confused by the labelling of the EV values in the tooltip, but I understand it bases “0 EV” on the darkest image, is that right? I think I read that here.
Thanks for any help!
P1130366-1130368.dng (21.3 MB)