Hi Bruno, to solve this problem take a look in the public engines here: Custom serializer definition: https://github.com/marvin-ai/marvin-public-engines/blob/master/image-classification-engine/marvin_image_classification_engine/model_serializer.py Usage of the custom serializer: https://github.com/marvin-ai/marvin-public-engines/blob/master/image-classification-engine/marvin_image_classification_engine/training/trainer.py https://github.com/marvin-ai/marvin-public-engines/blob/master/image-classification-engine/marvin_image_classification_engine/prediction/predictor.py
Basically, Marvin gives you the power of creating your own serializable, in this case, I am just using Keras default serializer. By default we already have a Keras serializer inside de tools box, you just to have to use it: Here is the serializer: https://github.com/marvin-ai/marvin-python-toolbox/blob/master/marvin_python_toolbox/engine_base/serializers/keras_serializer.py You just have to extend it from your Predictor and Trainer classes to use it. Em ter., 26 de nov. de 2019 às 07:22, Bruno Sette (Jira) <j...@apache.org> escreveu: > Bruno Sette created MARVIN-70: > --------------------------------- > > Summary: Keras predictor preparator (image) nparray is not > JSON serializable problem > Key: MARVIN-70 > URL: https://issues.apache.org/jira/browse/MARVIN-70 > Project: Apache Marvin > Issue Type: Bug > Reporter: Bruno Sette > > > Hi guys, > > I'm having a problem with predictor preparator in dryrun. Keras predictor > needs to convert images to nparray, a type wich its not json serializable. > I've tried to convert the nparray to a python list, but this doesn't work > well because it is a multidimensional array. Any ideas on how to solve this? > > > > Thanks. > {code:java} > > > ------------------------------------------------------------------------------ > MARVIN DRYRUN - STEP [PredictionPreparator] > > ------------------------------------------------------------------------------ > > Message 0 : > "http://datawrangling.s3.amazonaws.com/sample_digit.png"; > Result for Message 0 : > Unable to serialize the object returned! > {code} > > > > > > > > > > > -- > This message was sent by Atlassian Jira > (v8.3.4#803005) >
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