Merge pull request #1755 from girder/zero-not-empty

Zero empty areas in tile frames
girder · Jan 3, 2025 · 98aa12f · 98aa12f
2 parents 841d774 + ec5fa0d
commit 98aa12f
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -13,6 +13,7 @@
 ### Changes
 
 - Suppress a warning about nd2 files that we can't do anything about ([#1749](../../pull/1749))
+- Zero empty areas in tile frames ([#1752](../../pull/1752))
 
 ### Bug Fixes
 

diff --git a/large_image/tilesource/utilities.py b/large_image/tilesource/utilities.py
@@ -885,7 +885,7 @@ def _addSubimageToImage(
     if image is None:
         if (x, y, width, height) == (0, 0, subimage.shape[1], subimage.shape[0]):
             return subimage
-        image = np.empty(
+        image = np.zeros(
             (height, width, subimage.shape[2]),  # type: ignore[misc]
             dtype=subimage.dtype)
     elif len(image.shape) != len(subimage.shape) or image.shape[-1] != subimage.shape[-1]: