update

mmdet/models/detectors/base.py

@@ -351,5 +351,5 @@ class BaseDetector(nn.Module, metaclass=ABCMeta):
             wait_time=wait_time,
             out_file=out_file)
 
-        if not (show or out_file):
-            return img
+        # if not (show or out_file):
+        return img

requirements.txt

@@ -1,6 +1,5 @@
 --find-links https://download.openmmlab.com/mmcv/dist/cpu/torch1.10.0/index.html
 mmcv-full==1.3.17
-mmdet==2.11.0
 torch==1.10.0
 torchvision 
 einops