Detect upside down QR?

Discussions about qrcode barcode reading and writing
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blewis
Posts: 31
Joined: Wed May 18, 2011 4:28 am

Detect upside down QR?

Post by blewis » Sat Nov 19, 2011 12:58 am

I have scanned documents that I am going OMR. Each document contains a QR code in the upper right which contains a unique identified for each page. Because these images are scanned using a document feeder, there is a chance the document may be scanned upside down because we do not require our users to make all the pages face the same way. I am about to begin writing the code to detect/read the QR code, but I was curious if I needed to verify the orientation of the page before calling BarcodeQRReaderDoScan(), or if that function was capable of detecting the QR code even if it's upside down? If it can, I can use the resulting X and Y position information from the QR scan to determine if I need to rotate...otherwise I need to determine orientation first, then do the QR scan.

Thanks,
Bryan
Bryan Lewis
gdPicture 10.2.5 Ultimate

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Loïc
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Re: Detect upside down QR?

Post by Loïc » Sun Nov 20, 2011 12:32 pm

Hi Brian,

Then engine can recognize barcodes in any orientation.

kind regards,

Loïc

blewis
Posts: 31
Joined: Wed May 18, 2011 4:28 am

Re: Detect upside down QR?

Post by blewis » Mon Nov 21, 2011 11:14 pm

Thanks!

Bryan
Bryan Lewis
gdPicture 10.2.5 Ultimate

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