bugfix: DecodeImage

ppcls/data/preprocess/ops/operators.py

@@ -188,7 +188,7 @@ def __call__(self, img):
         elif isinstance(img, bytes):
             if self.backend == "pil":
                 data = io.BytesIO(img)
-                img = Image.open(data)
+                img = Image.open(data).convert("RGB")
             else:
                 data = np.frombuffer(img, dtype="uint8")
                 img = cv2.imdecode(data, 1)
@@ -197,7 +197,7 @@ def __call__(self, img):
 
         if self.to_np:
             if self.backend == "pil":
-                assert img.mode == "RGB", f"invalid shape of image[{img.shape}]"
+                assert img.mode == "RGB", f"invalid mode of image[{img.mode}]"
                 img = np.asarray(img)[:, :, ::-1]  # BRG
 
             if self.to_rgb:
@@ -742,8 +742,8 @@ def _parse_fill(self, fill, img, min_pil_version, name="fillcolor"):
         # Process fill color for affine transforms
         major_found, minor_found = (int(v)
                                     for v in PILLOW_VERSION.split('.')[:2])
-        major_required, minor_required = (int(v) for v in
-                                          min_pil_version.split('.')[:2])
+        major_required, minor_required = (
+            int(v) for v in min_pil_version.split('.')[:2])
         if major_found < major_required or (major_found == major_required and
                                             minor_found < minor_required):
             if fill is None: