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Author Topic: Photo rotation needed or not?  (Read 1208 times)

rossnixon

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Photo rotation needed or not?
« on: January 30, 2017, 04:30:39 AM »
I have a question about rotation of photos for aerial surveys.
This project has many photo sequences, mostly taken in a north-to-south, or south-to-north direction.  I rotated many of these in an external program, to make it easier for me to find GCPs which occur on existing orthophotos. The 'Align Photos' using Reference (photos had GPS in EXIF) worked well; but while placing GCPs, I have found some photos that I failed to rotate 180ยบ, and I have some markers that are wanting to go in a completely wrong position.

What to do next? Ignore the marker for those photos? Rotate the images outside of Photoscan? Rotate them inside Photoscan? Does this mean my Key Point and Tie Point recognition needs to be repeated?