iTrace vs OGAMA

iTrace is a free, MIT-licensed toolkit for analyzing webcam eye-tracking data, with a scientific core built on NumPy and SciPy. It computes gaze in degrees of visual angle and detects fixations, saccades, and microsaccades using I-VT, I-DT, and Engbert–Kliegl methods. Pupil tools include blink detection and interpolation, preprocessing, and eye-crop segmentation measured in pixels or relative to iris size. Affine screen-space calibration reports calibration error and gaze-quality measures. The command-line tool analyzes gaze CSV files and exports JSON reports. Optional webcam capture uses OpenCV and MediaPipe, and optional interfaces include a local HTML app using FastAPI and WebSockets and a Streamlit dashboard. Live workflows can export derived gaze, pupil, and capture CSVs. By default, the workflow does not save raw eye video or persisted eye-crop images, though live viewing may send a temporary JPEG crop to a browser over a local WebSocket. The project says its checks use synthetic ground truth rather than real eye-tracking data or a reference device. Webcam pupil size is a relative proxy, not a measurement in millimetres.

OGAMA is Windows freeware for recording and analyzing eye-tracking and mouse-tracking data in slideshow experiments. It supports direct recording with Tobii, alea and SMI systems, along with the open-source ITU Gazetracker solution. Gazetracker can use infrared-ready webcams or a modified PlayStationEye camera. OGAMA can also import ASCII recordings from eye-tracking and presentation software or hardware. Its analysis tools include database-driven preprocessing and filtering, attention maps, areas of interest, saliency calculations, Levenshtein distances, and replay with AVI recording. Output can be used directly with statistical software packages. OGAMA is an open-source project written in C#.NET, and users can adapt its code. The maintainer announced in May 2016 that they had stopped supporting the project because they no longer had time for support and feature requests.