Medical Imaging, Artificial Intelligence, Data Labeling, Machine Learning.
+1500 HU, which is a range of 3000 HU. Displaying this as 3000 shades of gray on a regular screen is impossible, as most screens support only 256 shades of gray — this is where windowing comes in. Windowing selects a range of HU values and maps those between [0, 255] allowing for higher resolution.