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?
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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 So, it may be outdated.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 A-Z 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.
Marcus
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Sir don't take silly, is it possible to install Local SDK for alpr in raspberry-pi 3 – SHASHIKUMAR B J Apr 02 '19 at 06:34
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The first part of my answer provides information about installing the OpenALPR library and its dependencies (OpenCV, Leptonica, Tesseract). I think that is the SDK. – Marcus Apr 02 '19 at 06:44
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Well, there is also a commercial SDK and I added a short info about this to my post. To get the full picture please also have a look at http://doc.openalpr.com/ – Marcus Apr 02 '19 at 06:55
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sorry, i'm using ONVIF in python and someone said that Local SDK will have all the tools for alpr. – SHASHIKUMAR B J Apr 02 '19 at 07:17
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1Considering the low CPU and memory profile of the Raspberry Pi 3 you're perhaps better off with Cloud API solution. – Marcus Apr 02 '19 at 07:18
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memory is not a issue. Please can you suggest for "Local SDK". – SHASHIKUMAR B J Apr 02 '19 at 07:22
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Also have a look at the "On-Premises ALPR" section of the docs. – Marcus Apr 02 '19 at 07:24
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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.
daan
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