Hello!

I have some problem with QR symbol detection. For test I create 8 symbols and put it on one image. If all the symbols placed in on line BarCodeReader detect all symbols without problem. But if symbols placed in ‘row’ and ‘column’ BarCodeReader can’t detect all symbols. Merely symbols lost. Are you having some solution for this problem?

Thanks

Hi,

We are checking this issue and will get back to you shortly.

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Best Regards,

Saqib Razzaq
Support Developer
Aspose Guangzhou Team

Hello! Any progress? We would like an update about this issue. Thank you.

Hi icharitoudis,

   Sorry that it’s a defect of the recognition function. It will cause some difficulty if a few big barcodes are put together into one image like your sample, the recognition progress of one barcode will be interferential by other barcodes that are around it. My suggestion is, put the barcodes into a multi-page tiff image, do not put too many barcodes into one single page. Is this possible in your application?

       For your reference, here is an article showing how to read barcodes from multiple page tiff image

 

       http://www.aspose.com/community/blogs/customer.newsletters/archive/2008/01/01/aspose-customer-newsletter-january-2008.aspx

 

       And if you had installed Aspose.BarCode 2.6.0, you can find a sample project from the start menu [Aspose.BarCode\Samples\VS2005\MultiPage Tiff Sample.sln], it demonstrate how to create/save barcodes into multipage tiff image and recognition the data from each page.

 

   Thanks

 

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Dean Deng
Lead Developer
Aspose Guangzhou Team
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Hello!

Unfortunately it’s not possible because we do not generate the images, we just try to read the data from them.

So, we need some solution about this problem. (Maybe detect separate lines with barcodes, and we decode information line by line or something like that…)

Please inform me about any solution.

Hi,

   Is the picture attached in your first post actually the same form as the images you need to read?Could you provide some sample pictures from your production?

   Thanks

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Dean Deng
Lead Developer
Aspose Guangzhou Team
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Hi,
Yes, the picture attached in my first post actually is the same as the image we need to read, but some times the image will have more barcodes on one line.

Hi,

   There are some cross lines between each row/column of the symbols in your sample (marked in the attached picture), if it's the same as the production pictures, I think we can split the symbols by finding these lines and then feed each symbol to BarCodeReader one by one, that will make great improvement for the recognition. Do you think this suggestion is compatible for your application? I can provide sample codes for splitting the symbols if so.

   Thanks

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Dean Deng
Lead Developer
Aspose Guangzhou Team
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Yes it is compatible for our application. I am waiting for sample code.

 

Thank you,

Hi icharitoudis,

   Please check the attached beta dll, this version improves the recognition for QR code, and I'd test it with your sample tiff images and all of the barcodes were found successfully.

   Thanks

 

 

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Dean Deng
Lead Developer
Aspose Guangzhou Team
About Us
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