preprocess `images` sections

[raprasad]

They exist at the:

• Dataset level
• Column level

May be a separate class that can be used by ColumnInfo/VariableDisplay.

• Attributes for each image:
  • url
  • filesize - ?
  • size - (width, height) [in pixels]
  • file_type - pdf, png, jpg, etc
  • tags -used to locate/id specific images in a list using sets of controlled vocabularies
    • example: ["bar_plot", "density"]
  • description - what is this image (often a plot) showing?
  • date created - timestamp
  • method_created - e.g. script or program that created it + version

[raprasad]

script for images from @marcusdeng22 :

• https://github.com/TwoRavens/metadata/blob/pythonJSON_Image/scripts/imagesFromJSON.py

python code to generate the image graphs for the editor. You can find the script under the branch "pythonJSON_Image" in the folder called "scripts". It reads the JSON from the "data" folder and outputs images to a folder called "builtImages". If you read through the code and have any questions, let me know! Ignore any lines that begin with "#~"; these are commented lines used for debugging