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Description:

photorectify 1.1.2

PhoToRectify
Notice: Only tested for Hasselblad L1D-20c and Pentax K-1 with HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR.
Undistort images with the Lensfun library and OpenCV.
Multiprocessing is supported to speed up the rectification.

Allowed input file formats: BMP, JPEG, JPEG 2000, PNG, PIF, SUN RASTERS, TIFF
Output file formats: JPEG, TIFF
Currently supported and used compressions:

JPEG with Quality 97
TIFF with JPEG-Compression

Custom meta data (optional arguments, use quotes if they contain spaces)

Installation
Installation into a virtual environment is recommended,
because PhoToRectify depends on some other packages.
Install with: pip install photorectify
Update with: pip install --upgrade photorectify
Requirements

Python 3.7+

exiftool 10.38+ (older versions not tested; install it with your distribution’s package manager)

PyExifTool has been modified and is shipped with photorectify’s source code (removed -n optional argument for proper lens detection with Lensfun + added method copy_tags())

For development: poetry (do not skip the installation of the development dependencies!)

Alternative remapping method for undistort()
Instead of using Pillow, you can also use OpenCV for remapping.
self.img_bgr_undist = lensfunpy.util.remap(
self.img_blob_bgr,
undistorted_coords)

Examples
Rectify one photo in a directory (rectifed photo are stored in the same directory as the input file):
photorectify Sampledata/DJI_0051.JPG
Rectify all photos in a directory:
photorectify Sampledata/
Rectify into a custom output directory:
photorectify Sampledata/ -o Sampledata/Rectified
Append custom suffix to rectified photos (automatically adds an underscore):
photorectify Sampledata/ -s rect
Specify meta data if photo hasn’t any EXIF tags:
photorectify Sampledata/DJI_0051.JPG \
--model L1D-20c \
--make Hasselblad \
--FLength 10.26 \
--FNumber 4.5

Get version:
photorectify --version
Development
More cameras and lenses can be supported by
adding them to lensfun-db.xml.
See the Lensfun database.
Running tests:
poetry run pytest -q tests/test_rectification.py
Contribution
To help improving this python package,
open an issue or create a merge request.