windowsopencvcmdopenalpr

Save JSON output of OpenALPR to file in user defined directory - Windows 10

I want to save the output of openalpr json format to a json or text or csv file in a user defined directory.

I tried the following, the connection is being established, the data output is appearing on command prompt, but \output\recognitionresults.json still does not exist

alpr -c eu --clock -j http://192.168.137.78:4747/mjpegfeed?640x480 \output\recognitionresults.json

enter image description here

What is there to add to the command script inorder to save the output to a file?

Environment: Windows 10 

OpenALPR download link: https://github.com/openalpr/openalpr/releases

Thank you!

Solution

  • According to the documentation you have to redirect the screen output to a file

    This command processes a list of image files provided in /source/imagefilelist.txt and writes JSON results to /out/recognitionresults.txt.

    $ alpr -j stdin < /source/imagefilelist.txt > /out/recognitionresults.txt

    So this should do:

    alpr -c eu --clock -j http://192.168.137.78:4747/mjpegfeed?640x480 > \output\recognitionresults.json