def from_config(cls, config):
return cls(feature_extractor=FeatureExtractor(config['INCEPTION_MODEL_FILE']),
package_uris=config['CLOUD_ML_PACKAGE_URIS'],
python_module=config['CLOUD_ML_PYTHON_MODULE'],
data_dir_format=config['CLOUD_ML_DATA_DIR'],
train_dir_format=config['CLOUD_ML_TRAIN_DIR'],
log_dir_format=config['CLOUD_ML_LOG_DIR'],
local_model_dir=config['MODEL_DIR'],
local_classifier_model_dir=config['CLASSIFIER_MODEL_DIR'])
class CandyClassifier(object):
def __init__(self, checkpoint_dir, params_file, inception_model_file):
self.inception_model = None
self.model = None
self.checkpoint_dir = checkpoint_dir
self.params_file = params_file
self.inception_model_file = inception_model_file
@classmethod
def from_config(cls, config):
checkpoint_dir = get_classifier_dir(config)
return cls(checkpoint_dir=checkpoint_dir,
params_file=os.path.join(checkpoint_dir, 'params.json'),
inception_model_file=config['INCEPTION_MODEL_FILE'])
def init(self):
self._load_inception_model()
self._load_transfer_model()
def reload(self):
tf.reset_default_graph()
self._load_transfer_model()
def _load_inception_model(self):
logger.info('Loading inception model...')
self.inception_model = FeatureExtractor(self.inception_model_file)
logger.info('Finished loading inception model.')
def _load_transfer_model(self):
logger.info('Loading transfer model...')
with tf.gfile.FastGFile(self.params_file, 'r') as f:
params = ModelParams.from_json(f.read())
self.model = TransferModel.from_model_params(params)
logger.info('Finished loading transfer model.')
def classify(self, img_bgr):
features = self.inception_model.get_feature_vector(img_bgr)
ckpt = tf.train.get_checkpoint_state(self.checkpoint_dir)
if ckpt is None:
raise IOError('Checkpoints not found.')
checkpoint_path = ckpt.model_checkpoint_path
result = self.model.restore_and_predict(features, checkpoint_path)
return result[0]
def _load_inception_model(self):
logger.info('Loading inception model...')
self.inception_model = FeatureExtractor(self.inception_model_file)
logger.info('Finished loading inception model.')