Can not decode PDF417 format type?

[binhtt6]

Hello, i try demo but get no luck with PDF417? Could you take a look about it? Thanks

[densen2014]

maybe need to config with zxing libs，i will check later

[binhtt6]

Thanks, waiting for further information

[densen2014]

Support now:

demo https://zxingblazor.app1.es/

pack https://www.nuget.org/packages/ZXingBlazor/0.2.4

use Pdf417="Pdf417"

    <BarcodeReader ScanResult="((e) => { BarCode=e; ShowScanBarcode = !ShowScanBarcode; })"
                   ShowScanBarcode="ShowScanBarcode"
                   Close="(()=>ShowScanBarcode=!ShowScanBarcode)"
                   ScanBtnTitle="Scan"
                   ResetBtnTitle="Reset"
                   CloseBtnTitle="Close"
                   Pdf417="Pdf417"
                   SelectDeviceBtnTitle="Select Device" />

Test: https://www.dynamsoft.com/use-cases/driver-license/assets/Image_2.png

Video: https://youtube.com/shorts/ia0JMdcHfJs

[binhtt6]

Thanks for your update. Trying decode with your png file in demo website but no luck. Demo web can decode QR code as well.

[densen2014]

• [x] do you test with checkBox “pdf417” is on？

• [x] or “Decodde all formats” is on to test it.

or

[binhtt6]

https://user-images.githubusercontent.com/30441291/203741660-3fa20fc9-1a5e-49b0-a4d6-9cba9df3abfd.mp4

Here is what i tested from my site

[densen2014]

https://user-images.githubusercontent.com/30441291/203741660-3fa20fc9-1a5e-49b0-a4d6-9cba9df3abfd.mp4

Here is what i tested from my site

what version is your android？ pdf417 need browse support bigint， can you test again in a ios device？

[densen2014]

do a test like my video: close the phone slowly to your papel , it has a distance setting for decode

Video:

https://user-images.githubusercontent.com/8428709/203809313-52491cf5-5b6a-4c46-8c67-5c90df5ba22b.MOV

https://user-images.githubusercontent.com/8428709/203809350-e8bf2ecb-3e5b-4159-ae90-12152c75a7e1.MOV

[densen2014]

Hahaha, in my new test ! pdf417 can be decoded all the time like version 0.2.3, new version 0.2.6 adds a Pdf417Only setting limit to only scan this type of code, corresponding to a special scene where there are many barcode types on a picture

[binhtt6]

Hello, after update my chrome mobile to newest version ( my os is Android 12). Web demo can decode pdf417 without Pdf417Only checkbox. But it seems not stable, take time to decode (3-4 s) , not smooth as decoding QR code. Can we optimize this ? i also try an android app https://play.google.com/store/apps/details?id=mobi.pdf417&hl=vi&gl=US it can decode so fast. Thanks

[densen2014]

app is alway working fast then web browser， ： ）

[densen2014]

The scanning distance is the key factor, and you can quickly scan the code after more tests. Another parameter is the interval between two scan codes, you can check the source code yourself