Check types with issubdtype

2026-06-27 18:25:32 +08:00 · 2016-06-17 17:56:52 -04:00
parent f2f9a3202d
commit 24bab75dc3
1 changed files with 1 additions and 2 deletions
@@ -116,8 +116,7 @@ def greycomatrix(image, distances, angles, levels=None, symmetric=False,
                         "other than uint8. The resulting matrix will be at "
                         "least levels ** 2 in size.")

-    if (image.dtype in (np.int8, np.int16, np.int32, np.int64) and
-                                                        np.any(image < 0)):
+    if np.issubdtype(image.dtype, np.signedinteger) and np.any(image < 0):
        raise ValueError("Negative-valued images are not supported.")

    if levels is None: