On 27 Jan., 18:28, Doug <[email protected]> wrote: > I haven't bothered to remove sky points because it hasn't > seemed to make any difference with these images
If I was you, I'd get rid of all points in the sky. Misalignment in the clouds is hard to spot. > I thought to try assigning separate lenses to each stack and > unlinking the lens parameters, then optimising for all lens > parameters including fov. The result was one step forward, > two steps back - the distance is now fine over the whole > panorama, but the foreground register is worse, even > extending a bit beyond the centre. > > What would you suggest next ? Assuming all options in hugin have been used to the max, there is just one solution left over: redo the take with a tripod - assuming the errors you have are from parallax. Exposure stacks are very sensitive to parallactic errors. Why so? In a standard panorama, the images only need to match along the seams, and the intelligent seam placement can put the seam in a place where the match is good. When fusing stacks, every single pixel from every single image is taken into account (within the constraints of the fusion parameters) - so if there are mismatches, they will show. If a tripod is not an option, do at least use a stick (like, a walking stick') to rest the camera on, and if all else fails, rest it against a tree, a rock or your body. Do the bracket in serial shot mode, so as to give you as little chance as possible to move the camera between shots. Ther's one thing you may want to try in case you can't redo the take. Often it's the case that parts of the image don't need to participate in the final outcome. If this is true for the parts of your image set where you experience problems, you can do this: Switch off all images but one from each stack, so that the only images left are the ones which have the best exposure for the area where your fusion problems are. Alternatively you can just switch off those images which obviously can't align well with the others. Now stitch a panorama from the reduced set (make sure you don't optimize or change anything before creating the subset panorama). Now you can open the fused panorama you already have and the new subset panorama as layers in an image editor and use a layer mask to override the erroneous areas in the fused panorama by parts of the subset panorama. 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
