Fix cv2.imwrite on non-ASCII paths (#7139)

* Fix imwrite on non-ASCII paths

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update general.py

* Update __init__.py

* Update __init__.py

* Update datasets.py

* Update hubconf.py

* Update detect.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update general.py

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

detect.py

@@ -29,7 +29,6 @@ import os
 import sys
 from pathlib import Path
 
-import cv2
 import torch
 import torch.backends.cudnn as cudnn
 
@@ -41,7 +40,7 @@ ROOT = Path(os.path.relpath(ROOT, Path.cwd()))  # relative
 
 from models.common import DetectMultiBackend
 from utils.datasets import IMG_FORMATS, VID_FORMATS, LoadImages, LoadStreams
-from utils.general import (LOGGER, check_file, check_img_size, check_imshow, check_requirements, colorstr,
+from utils.general import (LOGGER, check_file, check_img_size, check_imshow, check_requirements, colorstr, cv2,
                            increment_path, non_max_suppression, print_args, scale_coords, strip_optimizer, xyxy2xywh)
 from utils.plots import Annotator, colors, save_one_box
 from utils.torch_utils import select_device, time_sync