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connervieira / Predator

A multi-purpose camera system focused on offline license plate and object recognition
https://v0lttech.com/predator.php
GNU Affero General Public License v3.0
104 stars 14 forks source link

Raspberry Pi camera compatability #4

Closed timothylidede closed 1 year ago

timothylidede commented 1 year ago

Problem with the ALPR library When running the app on rpi4, I get this message on the console: Image file not found: /home/pi/Predator/realtime_image.jpg The JSON data returned by the ALPR process is malformed. This likely means there's a problem with the ALPR library.

what could be the cause of this

timothylidede commented 1 year ago

It's because there's no way to use raspberry pi camera as the default camera, could this be changed?

connervieira commented 1 year ago

I'm unfamiliar with the Raspberry Pi camera, but you can specify a camera device for FSWebCam to use in the configuration.

It's possible the Raspberry Pi camera doesn't operate as a generic camera though. If that's the case, is there another command utility that the Raspberry Pi uses to capture stills from the camera? I might be able to add it as a camera back-end option.

connervieira commented 1 year ago

As a side note, I'm currently developing an alternative version of OpenALPR called Phantom, designed specifically for use in Predator. This modified version will be able to feed back more descriptive errors in order to avoid these vague error messages.