The problem is that there is no rectangular (planar) projection available in Hugin. It is different from rectilinear. Rectilinear projection preserves straight lines, but does not preserve straight angles. Rectangular does not preserve areas, but preserves straight lines and angles. The adjustment of partial images is based on control points, as always, but it is done by rotating and resizing images. Field of view is discarded because scans may have different pixel size and they are not related to any lens field of view.
If you have an Android device, you may try Bimostitch or Mapstitch, that use the planar (rectangular) projection. Bimostitch is better because it does not blend images (you can select between matching or blending). For Windows you may try ArcSoft Scan-n-Stitch Deluxe, but it is very limited and outdated. All images must be the same pixel sizes and it often fails even with 2 rows map, because correction of misplaced control points is not available in this software. On Friday, December 14, 2018 at 11:15:02 AM UTC+1, Edward Carnby wrote: > > Hi all, > I've used Hugin for some time and I encounter no problem stitching old > maps I scanned from libraries. They usually were divided into four or six > parts. I have now to stitch a very large map of Italy divided into 32 scans > (eight rows, four columns). I followed the tutorial (stitching flat scanned > images) but I wasn't able to achieve a decent result. The optimizer always > stitch it in a bad way. I tried to stitch some parts and than stitch them > again with others but the result was pretty unacceptable because of bad > alignment. Besides I have a Win 64 system and cannot install autopano sift > C. Hints are appreciated. > Best regards. > -- 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/c194acad-6521-422d-a096-8c2fa8fa36b3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
