Greg, thanks for the additional information. The images in this set are well suited to the quick run though using the Fast Pano Preview because of the randomness of the rocks, trees, and water. It’s hard to detect any minor discrepancies like one would with images of manmade structures. With those the iterative process that David covered works well to get the best alignment.
I don’t know why David’s version of Hugin wasn’t able to find connections between so many images. He used 2022.0 and I’m using 2022.1 (listed as pre-release). 1. Another reason that Hugin might be coming up with the “image stacks” is the difference in shutter speed of the images … they run from 1/125 s to 1/500 s (but I don’t know what Hugin is basing its decision on). Stanley … I’ve seen many suggestions that pano images be taken in manual mode with the settings base on the brightest part of the image. Also, keeping the white balance fixed might help the colour tinting that shows up. 2. After Align, I get a mean error of 5.5 pix with max 38.6. I received the same colour tint issues that showed in David’s stitched image. The top-right corner has a green tinge. Don J. > On Aug 21, 2023, at 6:27 PM, Greg 'groggy' Lehey <groog...@gmail.com> wrote: > > On Sunday, 20 August 2023 at 6:34:23 -0400, Stanley Green wrote: >> If the link is still active, you can try to get the images directly: >> >> https://wetransfer.com/downloads/c5b1b40878f4f80c5b68af6a6767392b20230817102250/51d164ee951b6c084af7ed1d0d27730e20230817102250/2ee2fd > > Thanks for that. > > I'm confused. A week ago I wrote: > > On Tuesday, 15 August 2023 at 11:02:08 +1000, Greg 'groggy' Lehey wrote: >> >> My suggestion: use the Align tab on the Fast Panorama Preview. > > Specifically, > > 1. Load the files from the "Load Images" tab in the Fast Panorama > Preview. > 2. Select "Align" from the Fast Panorama Preview. > 3. Select "Create Panorama" from the Fast Panorama Preview. > > And that's all. > > In a little more detail for this specific panorama: > > 1. Loading the files produced the popup > > Hugin has image stacks detected in the added images and will > assign corresponding stack numbers to the images. Should the > position of images in each stack be linked? > > That's incorrect. There are no image stacks here, so you should > answer No. I've almost never seen this message, and I suspect it > comes here because of the overlap between images. 30% should be > enough. This will give you fewer images and will greatly reduce > the stitching time. > > 2. Aligning the images gave me an image with mean error 3.8 pixels, > maximum 28.4. Potentially you could improve on this with more > attention to the position of the entrance pupil, but part of it > will be due to the water, which doesn't stay the same from one > image to the next. You could tune the control points, but in this > case I don't think you need to: I don't see any inconsistencies in > the finished panorama. > > 3. "Create Panorama" offers you a choice of stitching options, > defaulting to "exposure corrected, low dynamic range". That's the > one. > > But that's all. In particular, I don't understand the problems that > David W. Jones had, but then I don't understand the complexity either. > I also didn't see the colour discrepancies that he mentions. > > So: the final image is at > http://www.lemis.com/grog/photos/Photos.php?dirdate=20230817 > I have also put the .pto file at > http://www.lemis.com/grog/Day/20230817/GF_6-panels_-3-Rows-0-GF_6-panels_-3-Rows-17.pto > This will not be directly applicable, because I have removed the > spaces from the file names you provided. > > Click on the image up to three times to increase the size up to the > original (about 113 MP). Also let me know if you want this image > removed after we're done. > > Greg > -- > Sent from my desktop computer. > Finger groog...@gmail.com for PGP public key. > See complete headers for address and phone numbers. > This message is digitally signed. If your Microsoft mail program > reports problems, please read http://lemis.com/broken-MUA.php > > -- > 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 hugin-ptx+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/hugin-ptx/20230822002739.GE55746%40eureka.lemis.com. -- 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 hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/C9675605-7B0A-436A-AEAE-A3AB1310B6BC%40accesscomm.ca.
