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dlbeer / quirc

QR decoder library
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DECODE FAILED: ECC failure #52

Closed ercjethava closed 5 years ago

ercjethava commented 5 years ago

I am decoding qr code using quirc library and getting this message.DECODE FAILED: ECC failure what does that mean.The same qr-code I am able to decode using another library.

dlbeer commented 5 years ago

ercjethava notifications@github.com writes:

I am decoding qr code using quirc library and getting this message.DECODE FAILED: ECC failure what does that mean.The same qr-code I am able to decode using another library.

If it's a valid QR code, that likely means that the code cells have been incorrectly read and the library can't correct the errors.

Have you tried looking at the image using the included "inspect" tool to see if the sampling grid is ok?

-- Daniel Beer dlbeer@gmail.com http://dlbeer.co.nz/ PGP: BA6E 0B26 1F89 246C E3F3 C910 1E58 C43A 160A 553B

ercjethava commented 5 years ago

what kind of inspect tool ?

dlbeer commented 5 years ago

ercjethava notifications@github.com writes:

what kind of inspect tool ?

There is a tool included in the source repository called "inspect". Give it an image and it will pop up an SDL window showing what quirc has detected and how it's reading the grid.

-- Daniel Beer dlbeer@gmail.com http://dlbeer.co.nz/ PGP: BA6E 0B26 1F89 246C E3F3 C910 1E58 C43A 160A 553B

ercjethava commented 5 years ago

yes that tools displays grid view of qr code and at bottom it says Decoding FAILED: ECC failure. BTW thats nice tool(inspect).

dlbeer commented 5 years ago

ercjethava notifications@github.com writes:

yes that tools displays grid view of qr code and at bottom it says Decoding FAILED: ECC failure. BTW thats nice tool(inspect).

Could you send me (dlbeer@gmail.com) the image or post it here?

-- Daniel Beer dlbeer@gmail.com http://dlbeer.co.nz/ PGP: BA6E 0B26 1F89 246C E3F3 C910 1E58 C43A 160A 553B

ercjethava commented 5 years ago

OK I got it.I took screenshot of qr code from pdf so it not detected its properly .Now it works fine.I tool screenshot again from pdf.thanks