Contact Sheets

• The Contact Sheet adapter is a python based tool that takes in a video and create a PNG image of contact sheets.  Frames can be extracted based on either a fixed quantity, based on a given time interval (second), shot detection, or facial recognition

• galaxy/tools/video_tools/contact_sheets.xml
  Tool configuration detailing tool execution, input file, output file, and labeling.
• galaxy/tools/video_tools/contact_sheets.py
  Python script to handle the input parameters and call the code to create the contact sheet. 
• galaxy/tools/amp_json_schema/contact_sheet.py
  Responsible for creation of the contact sheet

• ffmpeg-python

Installation:
        $ pip install ffmpeg-python

Running the tool

• The tool can be invoked from Galaxy UI as other tools. User needs to supply input data in the form of standardized speech to text output

• $input_file: Video input file
• $type: Contact sheet type.  Controls the interval at which the images are drawn from frames. 
  • time: Extract frames by time period
  • quantity: Extract a fixed number of frames
  • shot: Extract frames based on shot detection
  • facial: Extract frames based on facial recognition 
• amp_shots: AMP Shot JSON to create frames from
• amp_facial_recognition: AMP Facial Recognition JSON to create frames from
• frame_seconds: Interval in seconds to space frames
• frame_quantity: Total number of frames to extract
• number_of_columns:  Number of columns in the contact sheet
• margin: Margin around each frame
• padding:  Padding around each frame

• Image file (PNG) containing the image at a specified interval.