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PDF417 recognition doesnt work

Posted: Fri May 23, 2014 1:13 pm
by npits
Hi,

Can you see if I'm doing something wrong with PDF417 recognition?
I'm sending you the sample image in the attachment.

The thing is that this image is successfully recognized as a PDF417 barcode with other software, but I would like to use gdpicture components...

This is the code I'm using:

Code: Select all

	string _hubFilePath = @"C:\Pictures\P0018.tiff";

	try
	{
		using (GdPicture10.GdPictureImaging oGdPictureImaging = new GdPicture10.GdPictureImaging())
		{
			int ImageID = oGdPictureImaging.CreateGdPictureImageFromFile(_hubFilePath);
			if (ImageID != 0)
			{
				try
				{
					string[] scanResult = null;
					int barcodeCount = 0;
					GdPicture10.GdPictureStatus status;
					
					// PDF417
					status = oGdPictureImaging.BarcodePDF417ReaderDoScan(ImageID, GdPicture10.BarcodePDF417ReaderScanMode.BestQuality, 1);
					if (status != GdPicture10.GdPictureStatus.OK)
						throw new ApplicationException("GDIPicture exception");

					barcodeCount = oGdPictureImaging.BarcodePDF417ReaderGetBarcodeCount();
					if (barcodeCount != 1)
						throw new ApplicationException("Barcode not found");
	
					scanResult = oGdPictureImaging.BarcodePDF417ReaderGetBarcodeValue(1);

				}
				finally
				{
					oGdPictureImaging.ReleaseGdPictureImage(ImageID);
				}
			}
		}
	}
	catch (Exception ex)
	{
		Console.WriteLine(ex.ToString());
	}

Re: PDF417 recognition doesnt work

Posted: Sat May 24, 2014 5:01 pm
by SamiKharma
Hi,

The image is not a document image, which is what GdPicture is designed to detect barcodes in. Also, the image was taken in a very low dpi, and then scaled up, making it very low quality.

Best,
Sami

Re: PDF417 recognition doesnt work

Posted: Tue May 27, 2014 2:33 pm
by npits
Hi Sami,

What is document image?

Here is link to another sample image that ZXing.BarcodeReader can decode, but GdPicture10.GdPictureImaging can not.
https://dl.dropboxusercontent.com/u/4515169/TEST4.jpg
Image

Is there any tip on GdPicture10.GdPictureImaging configuration or something similar that could help me with PDF417 recognition?


Thank you

Re: PDF417 recognition doesnt work

Posted: Tue May 27, 2014 4:18 pm
by SamiKharma
Hi,

I suspect the problem is with the low dpi of the image. Nonetheless, the issue has been reported internally for evaluation and resolution by the technical team.
We will let you know as soon as it is resolved.

Best,
Sami

Re: PDF417 recognition doesnt work

Posted: Fri Jul 31, 2015 3:21 pm
by Loïc
Hello,

This barcode is correctly detected by our latest version.

Kind regards,

Loïc

Re: PDF417 recognition doesnt work

Posted: Thu Jan 23, 2020 9:01 pm
by EFernkaes
Hi Loïc,

I attached some documents, which we scanned in quite good Quality and your latest relaese does not recognisze them (but our old Software from 2005 does :-)

I can send you many more if you want.

When looking at the Images, on of the Problems seems to be, that you Need enough space araound the Barcode, that they are recognized properly.

Greetings Reinhard

Re: PDF417 recognition doesnt work

Posted: Mon Jan 27, 2020 5:10 pm
by loicaigon
Hi Reinhard,

Thanks for letting us know and for your offer of providing more input files. May I suggest that you create a ticket and join your files there?
https://orpalis.zendesk.com/hc/en-us/requests/new

Looking forward,

Loic Aigon
Customer Success Manager
Orpalis

Re: PDF417 recognition doesnt work

Posted: Mon Feb 03, 2020 2:10 pm
by Hugo
Hi EFernkaes,

Due to your request, we have deleted the file you added to your message.

Regards,
Hugo Cudd
Technical Support

Re: PDF417 recognition doesnt work

Posted: Tue Aug 09, 2022 5:34 pm
by robertryan
Can you see if I'm doing something wrong with PDF417 recognition?
I'm sending you the sample image in the attachment.

The thing is that this image is successfully recognized as a PDF417 barcode with other software.
But I would like to use gdpicture components.

Bugarsky & Navarro, LLC

Re: PDF417 recognition doesnt work

Posted: Wed Aug 10, 2022 3:28 pm
by Hugo
Hi Robertryan,

Thank you for your feedback.

Regarding this, I see no images attached to your message. Could you add this please?

If this is confidential we can further and more actively discuss this by contacting us here:
https://orpalis.zendesk.com/hc/en-us/requests/new

Feel free also to let me know which other software allows you to view this so I may also notice this on my end.

Regards,
Hugo Cudd
Technical Support