From 30880699be91f0abf32e169b860192dbdf352e24 Mon Sep 17 00:00:00 2001
From: Walter Simson <walter.simson@tum.de>
Date: Tue, 19 Nov 2024 15:16:40 -0800
Subject: [PATCH] convert uint to unsigned int to allow negative indexing
 instead of wraparound with unsinged ints

---
 kwave/utils/matlab.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kwave/utils/matlab.py b/kwave/utils/matlab.py
index 2a426f40..dd44ca51 100644
--- a/kwave/utils/matlab.py
+++ b/kwave/utils/matlab.py
@@ -90,6 +90,9 @@ def matlab_mask(arr: np.ndarray, mask: np.ndarray, diff: Optional[int] = None) -
 
     """
 
+    if mask.dtype == "uint8":
+        mask = mask.dtype("int8")
+
     if diff is None:
         flat_mask = mask.ravel(order="F")
     else: