Merge pull request #26 from claydugo/fixup_memory_leak

Address memory leak in `imwrite_to_memory()`

Author: claydugo

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.6.1] - 2026-01-23
+
+- Fix memory leak in `imwrite_to_memory()`. The codestream and memory outfile are now
+  properly closed after encoding.
+
+
+
 ## [0.6.0] - 2026-01-22
 
 - Provide a new method `get_level_shape` to help get the shape after decoding for

ojph/_imwrite.py

@@ -57,7 +57,10 @@ def imwrite_to_memory(
         tileparts_at_resolutions=tileparts_at_resolutions,
         tileparts_at_components=tileparts_at_components,
     )
-    return np.asarray(CompressedData(mem_outfile, codestream))
+    data = bytes(mem_outfile.get_data())
+    codestream.close()
+    mem_outfile.close()
+    return np.frombuffer(data, dtype=np.uint8)
 
 
 def imwrite(