I was wondering if there are any examples of using PD to take images from a USB camera every 3 seconds or so and saving the image out to individual filenames that includes the time stamp in the filename.
My goal is to create a poor mans DAQ (data acquisition) using PD, a multi-meter, and image recognition.
My thought process:
- PD plays audio signal that increases over time for a duration of 3 second, then appends the signal value that was played to a text file with a time stamp.
- Have usb take camera shot every 3 seconds of a digital multi-meter screen and output that to a file with the time stamp in the filename.
- Use machine learning / OCR on image files and append the decoded OCR numerical data to another text file that includes a time stamped text value from the filename so I can sync up the original signal played and the value that comes from the multi-meter output.
- Plot the values from text file showing input signal vs output signal
PS I'm using Ubuntu 20.04 Linux.
If anyone has another way of doing this please let me know.