scanned or photo taken from hand that do not have ideal perspective - tools to fix them / Hugin

Correct Perspective

Using Hugin

• drag image onto Hugin panorama
• set HFOV to 50°
• In the stitcher tab change the projection to Rectilinear
• in the control point windows pick one end of a vertical or horizontal feature on the left image and then other end on the right image.
  • add some points
• next go to the optimizer tab
  • create panorama (this do the optimasation) - it save the project and the point
    • create the image (choose jpg).

Stitcher Tab refered in tutorials is in fact accessible in View Menu

A stitching panorama tool:

• can estimate lens distortion
• correct perspective - with a good selection of both vertical and horizontal control points
• stitching flat image - recreate larger flat image from a set
• panoramas ?

Install

• from PPA

$ sudo add-apt-repository ppa:ubuntuhandbook1/hugin
$ sudo apt update
$ sudo apt install hugin

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