Straightening Tool for Photographic Images
Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
Drag the "straightening tool" line to an area in the photo that you want to be horizontal. The image rotates accordingly and you can crop away the unwanted borders.
Contributed by: Erik Mahieu (August 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Inspired by the Demonstration of Yu-Sung Chang: "Straightening Up an Image".
Permanent Citation
"Straightening Tool for Photographic Images"
http://demonstrations.wolfram.com/StraighteningToolForPhotographicImages/
Wolfram Demonstrations Project
Published: August 30 2011