python - Error using CoreML model to classify an image -


i'm trying use coreml tools convert keras model coreml , i'm having error in prediction. first converted model:

coreml_model = coremltools.converters.keras.convert(       model,       input_names='stampimage',    # inform coreml input name       image_input_names = 'stampimage', # inform coreml input images       output_names='prediction',       class_labels = class_labels, # labels_dict       predicted_feature_name='predicted_feature_name',       is_bgr=true)  coreml_model.save('./trained_models_data/stamps' + version + '.mlmodel')

the conversion runs fine. loaded model:

model =  coremltools.models.mlmodel('./trained_models_data/stamps' + version + '.mlmodel')

and image:

from pil import image   image = image.open('c1243_lnd_899fa3f6-b703-4724-9701-f11dad7cedfe.jpg')

but when tried predict:

model.predict({'stampimage': image})

i received error:

error: value type not convertible:   <pil.jpegimageplugin.jpegimagefile image mode=rgb size=714x714 @ 0x1127425a8>   ---------------------------------------------------------------------------   runtimeerror                              traceback (most recent call last)   <ipython-input-21-82fd85392a7f> in <module>()   ----> 1 model.predict({'stampimage': image})     /anaconda/envs/coremltools_py2/lib/python2.7/site-packages/coremltools/models/model.pyc in predict(self, data, **kwargs)       236         """       237         if self.__proxy__:   --> 238             return self.__proxy__.predict(data)       239         else:       240             if _sys.platform != 'darwin' or float('.'.join(_platform.mac_ver()[0].split('.')[:2])) < 10.13:     runtimeerror: value type not convertible

i tried follow steps "core ml in depth" session in wwdc... know wrong?

you should load converted model coreml on ios side. python use model before conversion.


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