There are a few ways, options in the panorama editor that give you more control over the final panoramas.
First make a panorama with automatic exposure correction, then save a new .pto file, reset user defined parameters - exposure, color, vignetting - whatever you want (but do not change positions, projection, size, crop), make new panoramas. At last select all photos, reset photometric parameters and make one more panorama. See which one looks the best. You can also start from loading photos, then go to the panorama editor, find control points, vertical lines, optimize positions and save the panorama without exposure and color correction. You will probably see that one panorama looks better in darker tones, the other in brighter areas. One panorama has better colors, the other has better exposures. Now you may load all panoramas to Hugin, reset positions, set projection to rectilinear. select the best parts using "include" and "exclude" masks, then save panoramas from stacks and from any arrangement, but... there may be parts that are differently aligned - the panorama made from stacks will contain overlaying objects in different places. In this case there should be an "include" mask for these differently aligned parts. Well, it works when you have only one panorama on your computer and unlimited time... I have started these topics, that the developers could introduce: - exposure correction as an optional step (in the settings) - select a different photo for exposure and a different photo for color. but this was not introduced, as many other ideas. some examples: a dark UI theme - adding control points in night photos is almost impossible, horizontal lines detection - for making rectilinear textures from buildings, short, user defined suffixes instead of _fused and _blended_fused - if you blend panoramas multiple times, you can get such filenames _fused_blended_fused_blended_fused_fused I even tried to replace the strings in the files, but there are hundreds of files, the suffixes _blended_fused and _fused are not a text variable, defined once, only in one file. They are repeated in multiple files as plain text. Well, I see that the whole construction became too complex, even for the leading developers. Whatever, glory to them, that it still works and it is still a free software. On Friday, December 6, 2024 at 11:43:41 AM UTC+1 [email protected] wrote: > On Fri, 6 Dec 2024 at 08:04, Frederic Da Vitoria wrote: > >> Hello, >> >> When I dragged the 3 pictures into Hugin, it warned me that "The project >> covers a big brightness range (...)", which is true. I proceeded as usual: >> create control points, optimize and output to layered TIFF. I did not ask >> Hugin to optimize photometric parameters, as I prefer to do the >> optimization myself in Gimp. The third photo is obviously lighter in the >> panorama than the original (and on looking closely, the first photo is >> slightly darker, but this does not bother me so much as the amount of >> correction here is small). >> >> I tried everything I could think of, but the only way I could get a >> panorama close to the originals was by asking Hugin to optimize photometric >> parameters, which is something I don't want him to do. >> >> Can someone tell me what is going on and how I can get a panorama with >> photometric parameters identical to the source photos? >> > > Hugin reads the EXIF metadata and adjusts the exposure of each photo in > the project so they all look like they were taken with the same exposure. > Sometimes this works very well, but it can result in ugly blown out areas > depending on your camera. > > This adjustment happens when you initially add the photos, when you > optimise the Ev these values will change slightly, but probably not much. > > If you don't want this behaviour, the simplest thing you can do is to set > the Ev of all your input photos *and* the Ev of your panorama output to the > same number. I also find that increasing the enblend levels helps cover the > mismatch. > > -- > Bruno > -- 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 visit https://groups.google.com/d/msgid/hugin-ptx/f6f20279-9ef3-4294-943b-a411cb42c512n%40googlegroups.com.
