Feature Request: Support for Micro QR Code

[GokulNC]

Support for both encoding and decoding would be great.

[lessthanoptimal]

Could be a little bit, but I'll look into it. I don't think it should be too difficult to adapt. Out of curiosity, where do you encounter Micro QR Codes? I don't think I've seen them in the wild yet.

[GokulNC]

I find it on in the back of my electronic devices, mostly if they're Chinese based. For example, battery. Also I remember seeing them in public places for WiFi access, though I cannot definitely say if they were normal or micro QR codes.

[lessthanoptimal]

Going to attempt to add this to v0.39. Was looking at the specs and it should be straight forward to adapt the existing code.

[lessthanoptimal]

https://github.com/lessthanoptimal/BoofCV/tree/feature/micro_qr

started implementing it

[lessthanoptimal]

Appears to be working. Still a bunch of work to do. One area you can easily help out is collecting a few real-world test images. Micro QR Codes are not nearly as common as QR codes so if you could provide images which could be added to the regression tests that would be great. I'll make some of my own but they would be "real" use cases.

[lessthanoptimal]

It's in SNAPSHOT with example code and working app. Please test and open if you find any issues!

[GokulNC]

Thanks! Currently I do not have any images to test.

At the time I raised this issue, we solved this issue by buying this API temporarily: https://www.datasymbol.com/barcode-reader-sdk/barcode-reader-sdk-for-windows/online-barcode-decoder.html

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Can you please add support for this in PyBoof as well? Currently I do not have Java setup on my machine. It would be a good feature in the python library as well.

[lessthanoptimal]

Would be interesting to do a comparison between the two. Never tested my QR code library against a commercial product.

I'll add it tp PyBoof when the next stable release comes out. That will probably happen in the next 2 to 4 weeks. Need to fix a couple of regressions first.

[lessthanoptimal]

Just did a test using their website and it looks like BoofCV does a significantly better job!

[lessthanoptimal]

@GokulNC Any chance you can contact me outside of Github? I'm trying to think of ways to help fund BoofCV and considered creating really easy to use web services and would like your thought since it sounds like your company/group might be potential customers.

[GokulNC]

Sorry I missed this message.

Thanks for asking! But as of now, unfortunately I am not working in that company where the requirement was there. Sorry! :)

[StaniEbo]

Where can I get the Micro QR code dependency?

[lessthanoptimal]

The last two versions have it included in the 'boofcv-core' module on Maven Central.

After adding that you should be able to run this example just fine.

ExampleDetectMicroQrCode.java https://github.com/lessthanoptimal/BoofCV/blob/SNAPSHOT/examples/src/main/java/boofcv/examples/fiducial/ExampleDetectMicroQrCode.java

On Wed, Oct 26, 2022 at 3:47 PM StaniEbo @.***> wrote:

Where can I get the Micro QR code dependency?

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[StaniEbo]

@lessthanoptimal Whenever I use The QrCode classes I get 3/4 Qrcodes but when I use Micro Qr Code I get none! Is there anyway we can optimise the detection in order to get a 4/4 using both Qrcode and MicroQrCode?

[lessthanoptimal]

One detector for each type of marker. With the current architecture you will need to run each detector independently on the same image.