Fix requirements (#59)

* Fix bug in ppyoloe

* fix ppyoloe output format

* remove some requirements

* fix conflicts

fastdeploy/vision/evaluation/detection.py

@@ -12,11 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from tqdm import trange
-import cv2
 import numpy as np
-from .utils import CocoDetection
-from .utils import COCOMetric
 import copy
 import collections
 
@@ -27,6 +23,11 @@ def eval_detection(model,
                    conf_threshold=None,
                    nms_iou_threshold=None,
                    plot=False):
+    from .utils import CocoDetection
+    from .utils import COCOMetric
+    import cv2
+    from tqdm import trange 
+
     if conf_threshold is not None or nms_iou_threshold is not None:
         assert conf_threshold is not None and nms_iou_threshold is not None, "The conf_threshold and nms_iou_threshold should be setted at the same time"
         assert isinstance(conf_threshold, (