So, I’ve had this mad scheme for a while to align a series of time-lapse images using a control point finder. The problem to solve is aligning a few hundred images that are very, very close, but due to wind or camera movement (it’s a point-n-shoot that re-assesses the scene every single shot) the images don’t exactly match up.
My first attempt with align_image_stack blew up since it loads all the images at once, and if you throw a few hundred 50 MB tiffs at it, your system runs out of memory (well, ok, I don’t have 128 GB in a system atm). So another goal is to be able to align an arbitrary number of images of arbitrary size, so this can be future-proofed against sensor size and my tight wallet. :) First of all, is there maybe a better tool to use than align_image_stack (w/ celeste to clear out clouds)? I somehow doubt the others would handle hundreds of images better, but maybe? Maybe a plugin for Lightroom (or other) that I’m missing? My train of thought has been: - Eat the elephant one bite at a time - do a series of manageable stacks, like 3-7 images. - Advance to the next stack by one image. This means that each photo is in several .pto files <- I AM HERE - Check for duplicate and very close control points. As luck would have it, it does appear to be finding some of the same control points to use independently across stacks. - Merge common control points and image alignment data into a single (huge) .pto file - re-run align-image-stack to correct the images. I’m not quite sure if I’m taking the right next steps. My thought was to build a database of control points and keep track of which or how many .pto files they’re in, and keep the ones that are in a majority of ptos. Also, since I have multiple correction values for each image, should I average the number out or ...? My intention was that since most of the images are stable, the ones that are off would stand out like sore thumbs. I realize most of the folks here haven’t thought about doing this, though a few have since I’ve found other posts via google, but extra brains would help! :) Slightly off-topic for Hugin, so if there’s a better place to posit this, just point me there! Thanks! Bob Campbell -- 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/F158045C-0650-41D6-BDC7-C59768C44D67%40gmail.com. For more options, visit https://groups.google.com/d/optout.
