code release

xlib/cv/cv.py

@@ -0,0 +1,39 @@
+import cv2
+import numpy as np
+
+
+def imread(filepath, flags=cv2.IMREAD_UNCHANGED, loader_func=None, raise_on_error=True) -> np.ndarray:
+    """
+    same as cv2.imread but allows to open non-english characters path
+
+    arguments
+
+     loader_func(None)    callable    your own loader for filepath
+     raise_on_error(True)   if False - no Exception on error, just None return
+
+    returns
+        np.ndarray
+
+    raises Exception if error and raise_on_error
+    """
+    try:
+        if loader_func is not None:
+            bytes = bytearray(loader_func(filepath))
+        else:
+            with open(filepath, "rb") as stream:
+                bytes = bytearray(stream.read())
+        numpyarray = np.asarray(bytes, dtype=np.uint8)
+        return cv2.imdecode(numpyarray, flags)
+    except Exception as e:
+        if raise_on_error:
+            raise e
+        return None
+
+def imwrite(filepath, img, *args):
+    ret, buf = cv2.imencode(filepath.suffix, img, *args)
+    if ret == True:
+        try:
+            with open(filepath, "wb") as stream:
+                stream.write( buf )
+        except:
+            pass