SDK install procedure in raspberry pi3 for image processing

Question

I want to install SDK for Automatic License Plate Recognition on Raspberry Pi 3. I have searched with Google but didn't find any instruction on how to install SDK for alpr. Can anyone please show the procedure to install SDK on Raspberry Pi 3 for Automatic license plate recognition?

Answer 1

On Raspberry Pi 3 there are is no binary distribution for OpenALPR as far as I know. Hence, you need to build the library yourself. The openalpr project README contains fairly detailed build instructions for various platforms - Ubuntu Linux is the closest I'd say. There is also a blog article ( Part 1 and Part 2 ) which describes the build on Raspberry 3 in detail, but part 1 is dated from 2016 and part 2 is dated 2017. So, it may be outdated. Another option may be to use Docker on Raspberry.

Another option is to the OpenALPR Cloud API . This way, the software on the raspberry will perform REST requests to let the cloud service perform the recognition. You can create a free account with a rate limit of 2000 recognitions per month. There is a Node-RED plugin which can be used to realize the REST client and the processing chain. There is a nice AZ tutorial for getting things setup on Raspberry Pi 3 including all the hardware setup.

It should also be noted there is a commercial version of OpenALPR referred to as Commercial SDK . The documentation also included information how to obtain and install the package.

Answer 2

DTK LPR SDK support Raspberry Pi 3/4. http://dtksoft.com/lprsdk This SDK have linux arm64/armhf libraries what can be executed on rpi.