XPost: uk.comp.os.linux   
   From: java@evij.com.invalid   
      
   On 2024-10-26 13:45, Andy Burns wrote:   
   > Java Jive wrote:   
   >   
   >> Some here may remember that over the last few years I've been   
   >> ploughing through a family history project involving thousands of   
   >> documents from two branches of our family going back many generations   
   >> to at least the reign of Queen Anne, and that I've been scanning big   
   >> documents in sections and stitching those together with photo panorama   
   >> stitching software   
   >   
   > Hugin (and qtpfsgui?) are applications I found interesting, but in   
   > practice hardly ever use, mainly because I find I haven't fed it a large   
   > enough selection of images to work with.   
   >   
   > Instead of 3x19, have you tried feeding it 5x19 with 2nd and 4th rows   
   > offset to the sides to give it overlapped images to find common points?   
      
   I suspect that the stitching software expects the sections to be   
   reasonably accurately aligned to a rectangular layout, and that   
   offsetting every other row would confuse it.   
      
   Based upon experience with other successful stitches that around 1-1.5   
   inches overlap is usually sufficient, with this one I measured out the   
   sections on the back of the tree [1] to each have 4 cms overlap with   
   each neighbouring section [2]  -  each physical section is the size of   
   the scanner glass = 30 x 22 cms so each 'logical' section is 26 x 18  -   
   and scanned to the marks as accurately as I could.  I'm not sure that I   
   could have done much better.   
      
   1  Which is a problem in itself as the paper is thin enough that they   
   are visible through it and will have to be laboriously removed later,   
   it's like what in old-fashioned kitchens used to be called grease-proof   
   paper.   
      
   2  Like so ( vertical bars represent pencil marks, need a fixed font to   
   display this properly):   
      
   - - - - - - - - - - - - -> | < 2cms > || < 2cms > | < - - - -   
   Edge of phy'l Sect #1: --------------------------->   
   Start of phy'l Sect #2: --->   
   Logical Section boundary: ------------>   
      
   --   
      
   Fake news kills!   
      
   I may be contacted via the contact address given on my website:   
   www.macfh.co.uk   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)