Metadata Parser¶

Reads metadata the from the input data directory.

plantcv.parallel.metadata_parser(config)

returns meta (dictionary of image metadata, one entry per image to be processed)

• Parameters:
  • config - plantcv.parallel.WorkflowConfig object
• Context:
  • This is one of the first steps built into the PlantCV Workflow Parallelization feature. It reads metadata the from the input data directory and uses the outputs in the job builder step.

A helper function to convert datetimes/timestamps in string format to Unix/Epoch time (elapsed seconds from epoch).

plantcv.parallel.convert_datetime_to_unixtime(timestamp_str, date_format)

returns unix_time (integer value of elapsed seconds from epoch: 1970-01-01 00:00:00)

• Parameters:
  • timestamp_str - a datetime represented as a character string (e.g. 2020-01-01 00:00:00)
  • date_format - date format code for strptime (e.g. "%Y-%m-%d %H:%M:%S") See strptime docs for supported codes.
• Context:
  • A timestamp is often an important piece of metadata associated with automated imaging. This function is used to convert between human and machine readable datetime formats within Workflow Parallelization.

Source Code: Here