Compensating scanner distortion - looking for volunteers with a scanner

[Krikor]

(03-04-2022, 03:50 PM)Ofnuts Wrote:

• A 7px error isn't bad if you are scanning a 600PPI (my scanner is 76px). If you used a lower definition, it's proportionally worse (7px @300PPI would translate to 14px@6OOPPI
  

• What is the picture above? The anchors are not on the lines, so it is after you ran the "fix" part?
  

In the previous attempt, the image skewed during printing. I scanned the image without noticing this deviation (0.16º).

So I redid the process again, but this time I scanned with a resolution of 600ppi.

Generating an output of : Scanner map 600PPI (5, 0.513, 0.551)






But I still don't quite understand what was done or how to take advantage of it.
I guess I'll have to read the manual again...