auto_straighten
🔗Name
auto_straighten.lua - straighten an image in darkroom using image metadata
🔗Description
auto_straighten reads the roll and pitch angle imformation recorded when an image is captured. A correction is computed and applied to correct the roll to the nearest vertical or horizontal axis using the rotate and perspective module.
The roll and pitch angle metadata field can be added to the metadata editor module which will then populate the field when an image is imported and make it available internally to the script. Otherwise, the exiftool external executable must be used to get the data.
🔗Usage
- start this script from script_manager or require it from the user luarc
🔗Additional Software Required
- exiftool - https://exiftool.org
🔗Limitations
- Roll and pitch angles are taken when an image is captured. If you shoot in burst mode, the roll and pitch angles of the first image are used in the rest of the burst (at least for Canon).
- If you are running multiple scripts that trigger on an image being opened in darkroom then the auto crop may not work. There is a shortcut included that can have a key sequence assigned so that the auto crop will be reapplied.
- Currently only roll angle is corrected
🔗Author
Bill Ferguson - wpferguson@gmail.com