On 26 Jan., 19:21, Doug <[email protected]> wrote: > I've a set of 5 hand-held images each at 3 bracketed > exposures, taken with the AEB setting on the camera (to > minimise movement between shots). > The images are set up as 5 stacks with unlinked images; the > control points found with CPfind Multirow/Stacks; alignment > optimised for y,p,r,x,y,z; then stitched with exposure fused > from stacks. > The result is fine towards the edges of the panorama, but in > the centre the stack(s) is/aren't properly fused - both > foreground and distance are out of register.
It looks like your take was done best as you could. One thing makes me wonder, though: x, y and z aren't what you optimize for in a standard panorama. Try resetting them to zero, reoptimize and see if your problem is still there. Do optimize for lens parameters, though, (a-e) - in case you haven't done so. > Could parallax between adjacent images in the centre of the > picture be causing problems? What could I do about it, if it > were? Most likely this is the problem. But you might still improve the outcome by trying to align the stacks better. For that, you'd first create more CPs. The specialist CP generator for stacks is still align_image_stack, and if I can't get my stacks right straight away with cpfind, I do at least give it a shot - it's slow but thorough. And when using cpfind, it may help to run it with my favourite options: --fullscale --sieve2size 5 on top of what else you may be using - this should give you up to 125 CPs per pair, nicely distributed over the images. I assume you have used the multirow feature so that there are CPs for all images inside a stack and the stacks are only inked among each other via a single exposure in each stack (usually the middle exposure) - if all images are interlinked, this can also lead to problems (especially with handhelp panoramas) - so your images should be linked something like (1,2,3) (4,5,6) (7,8,9) (10,11,12) (13,14,15) (1,4,7,10,13) do doublecheck just in case something went wrong with your CPG settings. Kay -- You received this message because you are subscribed to the Google Groups "Hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx
