Read videos from HIM project files

util.py

@@ -0,0 +1,26 @@
+from typing import Dict, Any, Tuple, Union, Iterable
+
+IntPoint = Tuple[int, int]
+FloatPoint = Tuple[float, float]
+Point = Union[IntPoint, FloatPoint]
+
+AlgorithmParams = Dict[str, Any]
+
+FRAME_SHAPE = (512, 424)  # TODO: hardcoded
+FRAME_WIDTH, FRAME_HEIGHT = FRAME_SHAPE
+
+
+def bounding_box_centre(points: Iterable[FloatPoint]) -> FloatPoint:
+    n = 0
+    x_sum = 0.0
+    y_sum = 0.0
+
+    for x, y in points:
+        n += 1
+        x_sum += x
+        y_sum += y
+
+    x_centre = x_sum / n
+    y_centre = y_sum / n
+
+    return x_centre, y_centre