On Wed, 2010-05-26 at 14:45 -0700, sneike wrote: > problem solved.. i had created an image which wasn't enough tall, so > practically didn't cover the whole 180° vertical POV.. > i stitched it again more carefully, and now it's fine!
> one last question to james: > > On May 23, 10:59 pm, James Legg <[email protected]> wrote: > > With regards to making stereographic images, it is often better to > > stitch to an equirectangular image, then import just that image into > > Hugin and stitch it into other projections. You can take as many > > different projections as you want, stitching the single image is fast, > > and there isn't too much loss in quality. > > i can't do this.. i import my equirectangular image, but i can't find > control points, and stereographic image doesn't come out as expected.. > how can i do it? You don't need to find control points. There is only 1 image. You'll need to tell Hugin the field of view and projection of the image (it can't save and load this data with the image yet). Hugin should ask you when you add it, but you can set it on the camera and lens tab too. Set the lens type to Equirectangular, and the field of view to 360 degrees. This should be what you exported, though you can change the projection of partial panoramas too. If you cropped the top off the equirectangular image, set the vertical image center shift on the lens tab to the negative of the number of pixels cropped off. If you have forgotten, you can work it out by subtracting the image height from half the image width. Then go to the Stitcher tab, set the panorama projection to stereographic, pick a sensible output size, and lower the field of view a little. (Since Stereographic projections massively distort as they approach 360 degrees.) You can rotate the image and adjust the field in either of the previews, though I find the fast preview much easier for this. If you use the fast preview there will be a seam where the edges of the image meet, this won't appear in the real output. If your equirectangular image had the horizon in the middle you can set the pitch to 90 degrees on the images tab to get a little planet. -James -- 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
