Compare Python and C++ detections for one model. Returns True if pass.

Compute IoU between two boxes (x, y, w, h format, normalized).

Export a model to ONNX. Returns ONNX path or None if model unavailable.

Match Python detections to C++ detections by IoU. Returns (matched_pairs, unmatched_py_indices, unmatched_cpp_indices). Each matched pair is

Run C++ test_inference binary, return parsed JSON dict.

Run Ultralytics Python inference, return list of detections.