Process Alfie TYCH film images into individual half frames.
This script processes images from a TYCH camera, which exposes two half frames on each frame of 35mm film. The script splits the images into individual half frames. It also adds EXIF information (currently hard-coded in the code). It can also optionally generate a contact sheet for each roll of film / directory processed.
I wrote about my first use of the TYCH here.
This is a simple Python application. It requires Python 3.9 or later and a number of additional packages such as Pillow, piexif, numpy, OpenCV and reportlab. These can be installed using pip:
pip install -r requirements.txtRun the script with the following command:
python process-tych.py [input_dir]The script will process all files in the input directory and output the results to a subdirectory called processed. The script will create the output directory if it does not already exist.
Pass the --with-contact-sheet option to generate a contact sheet for each roll of film. The contact sheet will be saved in the processed directory. The default is not to generate contact sheets, as this takes longer than processing the images.
Note
There are a number of comments marked TODO and FIXME in the code. These are things I would like to improve in the future.
Important
In some cases, the attempt to split the images into half frames will fail. This may be because the image is too dark, or the half frames are not sufficiently distinct.
Important
The EXIF information - specifically author copyright - is hard-coded at the moment.
MIT License. See LICENSE for more information.
This script use Komika Axis font by Vigilante Typeface Corporation. See LICENSE-KOMIKA.txt for more information.
This script uses Open Sans font by Steve Matteson. See LICENSE-OPEN-SANS.txt for more information.
This code is not affiliated with Alfie Cameras.