matplotlib
diff --git a/‎lib/matplotlib/image.py
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+2Lines changed: 2 additions & 0 deletions b/‎lib/matplotlib/image.py
Copy file name to clipboardExpand all lines: lib/matplotlib/image.py
+2Lines changed: 2 additions & 0 deletions
@@ -368,6 +368,8 @@ def _make_image(self, A, in_bbox, out_bbox, clip_bbox, magnification=1.0,
                     # values to carry the over/under/bad information
                     rgba = np.empty((A.shape[0], A.shape[1], 4), dtype=A.dtype)
                     rgba[..., 0] = A  # normalized data
+                    # this is to work around spurious warnings coming
+                    # out of masked arrays.
                     with np.errstate(invalid='ignore'):
                         rgba[..., 1] = A < 0  # under data
                         rgba[..., 2] = A > 1  # over data