jeffbass

#!/usr/bin/env python3
""" Generate text files for testing Evernote v10.x

Generates text files of different sizes. The text files have increasing numbers
of lines. The number of words per line is random, between min_words and
max_words. The text that provides the pool of words is The Gettysburg Address.
Text files are named ENtest500.txt, ENtest1000, ENtest1500, ENtest2000, ...
where the number portion represents the number of text lines in the file.

Author: Jeff Bass, https://github.com/jeffbass

jeffbass

# Settings for imagenode.py picam motion detector 
---
node:
  name: Driveway
  queuemax: 50
  patience: 10
  stall_watcher: True
  heartbeat: 10
  send_type: jpg
  print_settings: False

jeffbass

# Use subprocess.run() to list the number of imagehub_data images for each date
#
# Copyright (c) 2018 by Jeff Bass.
# License: MIT, see LICENSE for more details.

import os
import subprocess

def n_images(dir):
    command = 'ls -l ' + dir + ' | wc -l'

jeffbass

# this is an example method from the Librarian ChatBot class
#   note that this is a simple example with a few hard coded imagenode names

    def report_temperature(self, locations):
        """ report temperature by location

        This is a very awkward test matching of location and temperature.
        Needs to be made much more sophistcated than if / else / etc.

        Parameters:

jeffbass

"""librarian: answer questions using imagehub event messages, images sensor data

Answers questions about currrent and past observations of imagenodes, including
inputs from PiCameras, USB Webcams, temperature sensors, etc.

Gathers image, sensor and event logs from imagehubs. Does analysis such as
object detection and classification on images. Monitors operational status of
imagenodes and imagehubs. Manages multiple modes of communications for queries
and alerts.

jeffbass

"""data_tools: data tools including classes, methods and attributes

Provides a variety of classes to hold, transfer, analyze, transform and query
the various data in the data library and in the imagehubs accessible to the
librarian.

Copyright (c) 2018 by Jeff Bass.
License: MIT, see LICENSE for more details.
"""

jeffbass

#imagehub.py snippet
#  (all the imports, logging setup hidden for now)
settings = Settings()  # get settings from YAML file
hub = ImageHub(settings)  # start ImageWriter, Timers, etc.
# forever event loop: receive & process images and text from imagenodes
while True:
    try:
        with Patience(hub.patience):
            text, image = hub.receive_next()
    except Patience.Timeout:  # if no timely message from any node

jeffbass

"""test sending a jpg buffer and check type & size of buffer

A simple test program that creates an image, then converts it to a
jpg_buffer and checks the type(), ndim, size and shape of the jpg_buffer.

This program tests some imports and some OpenCV functions, as well.

Open Source Licensed under MIT License (MIT)
Copyright (c) 2020, Jeff Bass, [email protected]
"""

jeffbass

Dependencies and Installation

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jeffbass

imagezmq: Transporting OpenCV images

imagezmq is a set of Python classes that transport OpenCV images from one computer to another using PyZMQ messaging. For example, here is a screen on a Mac computer showing simultaneous video streams from 8 Raspberry Pi cameras: