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which package can convert barcode image to url?

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  which package can convert barcode image to url? Long Wind <longwind2@yahoo.com> - 2020-10-20 23:50 +0200
    Re: which package can convert barcode image to url? Siard <shiems@mailbox.org> - 2020-10-21 00:30 +0200
      Re: which package can convert barcode image to url? Long Wind <longwind2@yahoo.com> - 2020-10-21 01:10 +0200
      Re: which package can convert barcode image to url? Charles Curley <charlescurley@charlescurley.com> - 2020-10-21 01:40 +0200
        Re: which package can convert barcode image to url? Richard Hector <richard@walnut.gen.nz> - 2020-10-21 03:00 +0200
          Re: which package can convert barcode image to url? Richard Hector <richard@walnut.gen.nz> - 2020-10-21 03:10 +0200
            Re: which package can convert barcode image to url? Long Wind <longwind2@yahoo.com> - 2020-10-21 03:20 +0200
              Re: which package can convert barcode image to url? Richard Hector <richard@walnut.gen.nz> - 2020-10-21 03:40 +0200
                Re: which package can convert barcode image to url? Long Wind <longwind2@yahoo.com> - 2020-10-21 13:20 +0200
                Re: which package can convert barcode image to url? Charles Curley <charlescurley@charlescurley.com> - 2020-10-21 16:30 +0200
        Re: which package can convert barcode image to url? didier gaumet <didier.gaumet@gmail.com> - 2020-10-22 14:20 +0200
          Re: which package can convert barcode image to url? Long Wind <longwind2@yahoo.com> - 2020-10-23 00:00 +0200
            Re: which package can convert barcode image to url? Richard Hector <richard@walnut.gen.nz> - 2020-10-23 00:10 +0200

#228039 — which package can convert barcode image to url?

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in Chinese barcode is called 2-dimension code
sorry, i have asked this question before, but can't find it in mailbox by search 
https://lists.debian.org/search.html isn't helpful either

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#228040

Long Wind wrote:
> in Chinese barcode is called 2-dimension code

Same as QR code?  dmtx-utils should be able to do it.
It contains 2 programs: dmtxread and dmtxwrite.
See also http://libdmtx.sourceforge.net

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#228041

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    On Tuesday, October 20, 2020, 6:26:18 PM EDT, Siard <shiems@mailbox.org> wrote:  
 
Same as QR code?  dmtx-utils should be able to do it.
It contains 2 programs: dmtxread and dmtxwrite.
See also http://libdmtx.sourceforge.net 


yes, i mean QR code
i've installed dmtx-utils, but it can't read image file
dmtxread .dierge_16.jpg


  

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#228042

On Wed, 21 Oct 2020 00:23:32 +0200
Siard <shiems@mailbox.org> wrote:

> Long Wind wrote:
> > in Chinese barcode is called 2-dimension code  
> 
> Same as QR code?  dmtx-utils should be able to do it.
> It contains 2 programs: dmtxread and dmtxwrite.
> See also http://libdmtx.sourceforge.net

I don't think so. dmtx is for reading and writing Data Matrix 2D
barcodes. https://en.wikipedia.org/wiki/Data_Matrix

My iPhone camera recognizes QR and standard bar code.
https://en.wikipedia.org/wiki/QR_code It did not recognize the sample
Data Matrix 2D barcode on the above Wikipedia article.

However, 'Barcode to PC', an app for iOS, did recognize the sample, and
read it correctly.

However, for Long Wind's question:

> which package can convert barcode image to url?

I am going to assume you mean a standard linear bar code, such as an
International Standard Book Number (ISBN).
https://en.wikipedia.org/wiki/International_Standard_Book_Number

apt-cache search 'bar code'
apt-cache search barcode

should give you far more than you really want.

I have used zbar-tools to decode bar codes (ISBNs). I think the limit
on the process is the quality of the camera you use, which is why I went
to 'Barcode to PC'. Of course, that requires a mobile phone.

-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

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#228046

On 21/10/20 1:34 pm, Long Wind wrote:
> 
> Thank Charles! but i really mean QR code: how to change it to url
> i've installed qtqr, it can't decode it though my phone can scan it
> i attach it in attachment

Can you get a clearer image?

I couldn't read it with zbarimg, but then I loaded it into the GIMP and
sharpened it, and then zbarimg could read it.

Richard

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#228047

On 21/10/20 1:57 pm, Richard Hector wrote:
> On 21/10/20 1:34 pm, Long Wind wrote:
>> 
>> Thank Charles! but i really mean QR code: how to change it to url
>> i've installed qtqr, it can't decode it though my phone can scan it
>> i attach it in attachment
> 
> Can you get a clearer image?
> 
> I couldn't read it with zbarimg, but then I loaded it into the GIMP and
> sharpened it, and then zbarimg could read it.

After installing imagemagick (and zbar-tools), and reading some man
pages, this worked:

richard@zircon:~$ convert dierge_16.jpg -sharpen 0x3 - | zbarimg -
QR-Code:http://stock.pingan.com/huodong/AnEXZ/down.html
scanned 1 barcode symbols from 1 images in 0.01 seconds

Cheers,
Richard

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#228049

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   On Tuesday, October 20, 2020, 9:06:25 PM EDT, Richard Hector <richard@walnut.gen.nz> wrote:
 .
After installing imagemagick (and zbar-tools), and reading some man
pages, this worked:

richard@zircon:~$ convert dierge_16.jpg -sharpen 0x3 - | zbarimg -
QR-Code:http://stock.pingan.com/huodong/AnEXZ/down.html
scanned 1 barcode symbols from 1 images in 0.01 seconds

Cheers,
Really? it's unbelievableqr code in image is in black and white, it's not taken by camera, so no fuzzy logic is needed by decoderimage source: https://stock.pingan.com/static/info/download/app.html
Thank Richard very much!

PS: i have to leave home now.
.
  

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#228050

On 21/10/20 2:19 pm, Long Wind wrote:
> On Tuesday, October 20, 2020, 9:06:25 PM EDT, Richard Hector
> <richard@walnut.gen.nz> wrote:
> 
> .
> After installing imagemagick (and zbar-tools), and reading some man
> pages, this worked:
> 
> richard@zircon <mailto:richard@zircon>:~$ convert dierge_16.jpg -sharpen
> 0x3 - | zbarimg -
> QR-Code:http://stock.pingan.com/huodong/AnEXZ/down.html
> scanned 1 barcode symbols from 1 images in 0.01 seconds
> 
> Cheers,
> 
> Really? it's unbelievable
> qr code in image is in black and white, it's not taken by camera, so no
> fuzzy logic is needed by decoder
> image source: https://stock.pingan.com/static/info/download/app.html

Strange that they provide a blurry image.
Even stranger that they don't make it an actual html link ... but I
guess the primary purpose is to get the app with your phone.

Richard

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#228062

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On Tuesday, October 20, 2020, 9:36:23 PM EDT, Richard Hector <richard@walnut.gen.nz> wrote:  
 Strange that they provide a blurry image.
Even stranger that they don't make it an actual html link ... but I
guess the primary purpose is to get the app with your phone.

it's blurry, i open it with gimp and zoom in, it not only uses black and white, but also gray, orange logo in center can also cause trouble for decoder
Correction: QR code (not barcode) is called 2-dimension code in Chinesebarcode is one-dimension code if we name it in the same way
  

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#228067

On Wed, 21 Oct 2020 14:35:52 +1300
Richard Hector <richard@walnut.gen.nz> wrote:

> On 21/10/20 2:19 pm, Long Wind wrote:
> > On Tuesday, October 20, 2020, 9:06:25 PM EDT, Richard Hector
> > <richard@walnut.gen.nz> wrote:
> > 
> > .
> > After installing imagemagick (and zbar-tools), and reading some man
> > pages, this worked:
> > 
> > richard@zircon <mailto:richard@zircon>:~$ convert dierge_16.jpg
> > -sharpen 0x3 - | zbarimg -
> > QR-Code:http://stock.pingan.com/huodong/AnEXZ/down.html
> > scanned 1 barcode symbols from 1 images in 0.01 seconds

This also worked for me. Thanks, Richard.

My iPhone did decode it correctly, both the native camera and the
'Barcode to PC' app.

> > 
> > Cheers,
> > 
> > Really? it's unbelievable
> > qr code in image is in black and white, it's not taken by camera,
> > so no fuzzy logic is needed by decoder
> > image source:
> > https://stock.pingan.com/static/info/download/app.html  
> 
> Strange that they provide a blurry image.

They could have provided a larger image. This is only 87 x 86 pixels.
Images I've generated are more like 123 x 123 or 171 x 171.

Note that the file size of mine is an order of magnitude smaller, 484
bytes v. 6457.

qtqr also failed to decode dierge_16.jpg.



-- 
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

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#228105

Le mercredi 21 octobre 2020 à 01:40:04 UTC+2, Charles Curley a écrit :
[...]
> I have used zbar-tools to decode bar codes 
[...]

and for the GUI way: it seems qtqr should do the trick:
 https://screenshots.debian.net/package/qtqr

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#228124

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   On Thursday, October 22, 2020, 8:18:18 AM EDT, didier gaumet <didier.gaumet@gmail.com> wrote:  
and for the GUI way: it seems qtqr should do the trick:
 https://screenshots.debian.net/package/qtqr

Thanks, but my problem has been solved.PS: they use jpeg format, it's not lossless format, that could explain why image is blurry?

  

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#228125

On 23/10/20 10:57 am, Long Wind wrote:
> On Thursday, October 22, 2020, 8:18:18 AM EDT, didier gaumet
> <didier.gaumet@gmail.com> wrote:
> 
> and for the GUI way: it seems qtqr should do the trick:
> https://screenshots.debian.net/package/qtqr
> 
> 
> Thanks, but my problem has been solved.
> PS: they use jpeg format, it's not lossless format, that could explain
> why image is blurry?

That, and possibly they resized it to fit the page.

Richard

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