"Unknown layer: Mish" while loading converted model from "yolo4_weight.h5"

[shangdibufashi]

Source code

from tensorflow import keras
new_model = keras.models.load_model('yolo4_weight.h5')

Error occurred:

Traceback (most recent call last):
  File "/home/source/keras-yolo4/mytest.py", line 13, in <module>
    new_model = keras.models.load_model(h5)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/saving/save.py", line 146, in load_model
    return hdf5_format.load_model_from_hdf5(filepath, custom_objects, compile)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/saving/hdf5_format.py", line 212, in load_model_from_hdf5
    custom_objects=custom_objects)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/saving/model_config.py", line 55, in model_from_config
    return deserialize(config, custom_objects=custom_objects)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/layers/serialization.py", line 89, in deserialize
    printable_module_name='layer')
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/utils/generic_utils.py", line 192, in deserialize_keras_object
    list(custom_objects.items())))
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/engine/network.py", line 1121, in from_config
    process_layer(layer_data)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/engine/network.py", line 1105, in process_layer
    layer = deserialize_layer(layer_data, custom_objects=custom_objects)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/layers/serialization.py", line 89, in deserialize
    printable_module_name='layer')
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/utils/generic_utils.py", line 181, in deserialize_keras_object
    config, module_objects, custom_objects, printable_module_name)
  File "/opt/conda/lib/python3.6/site-packages/tensorflow/python/keras/utils/generic_utils.py", line 166, in class_and_config_for_serialized_keras_object
    raise ValueError('Unknown ' + printable_module_name + ': ' + class_name)
ValueError: Unknown layer: Mish

[fcxmcc]

you can train your dataset to get the weight such as yolov3

[apupu1]

You can try the following code:
import keras
from yolo4.model import Mish
mish = Mish()
infer_model = keras.models.load_model('yolo4_weight.h5',custom_objects={'Mish': mish})

[shangdibufashi]

@apupu1 Works like a charm. Thank you :)