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Questions tagged [zbar]

for questions not specific to iPhone. ZBar is an open source (GNU LGPL 2.1) software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code.

ZBar is an open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code. ZBar supports several platforms: Windows, Linux, iPhone.

ZBar is used widely in iOS applications and has an SDK specifically for iphone devices.

ZBar SDK supports the iPhone 3GS and iPhone 4, as they have a camera with auto-focus. The ZBar library does not support the iPhone 3G. At the same time ZBar supports iPad 2 camera, in spite of absense of auto-focus camera.

ZBar is licensed under the GNU LGPL 2.1 to enable development of both open source and commercial projects.

Use this tag for ZBar issues not related to iPhone ZBar SDK, for which there is a specific tag.

392 questions
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zbarSDK reader doesn't scan QR on fast devices (XCODE)

I am using the zbarSDK on my IOS app. It works like a charm and it was perfect. The problem is when I press on the Scan Button in front of a QR code (on fast device like 4s or iPhone 5), I only get the green rect and nothing happen, and I need to…
NDM
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ios-focusing make too long

I realize scanning bar code with ios abd zbar:ZBarReaderViewController.but when the camera show, the focusing very blurry,always need two second focus to become clear,why this happen?is there some setting that can make it better?
Xoangle
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Android java utf-8 encoded strings

I'm trying to build an Android application using the zbar library to scan codes. I generated QRcodes with UTF-8 encoding and am using this Android app to scan them. The text I'm encoding is "L'étoile". I tried the default zbar test program and…
user1936810
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zBar Scanner View Controller Won't Dismiss Until Segue

I'm working with ZBar and am trying to add a subview to show a searching UIActivityIndicatorView after I scan a barcode and before my new view is ready (slow web lookup, etc). Here is the code: - (IBAction)scanImage{ ZBarReaderViewController *reader…
MikeMilzz
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Zbar Scanner Error java.lang.RuntimeException: cancelAutoFocus failed

my app contains barcode scanner, i used Zbar scanner and it worked but the following error keeps appearing and I searched alot I didn't find any solution the error : java.lang.RuntimeException: cancelAutoFocus failed java.lang.RuntimeException:…
hoabouseif
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Detect and decode Intelligent Mail Barcode on the image using PHP

Trying to detect and decode the IM barcode on the picture. Using Mac/nix system..Tried many libraries and approaches but have no luck. How to properly do so? I tried to use pyzbar but it couldn't detect Intelligent Mail barcodes. Also tried to use…
Fred August
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Opencv zbar python scanner error

import zbar import Image import cv2 # create a reader scanner = zbar.ImageScanner() # configure the reader scanner.parse_config('enable') #create video capture feed cap = cv2.VideoCapture(0) while(True): ret, cv = cap.read() cv =…
joeydash
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Using zbar to scan barcode images?

i am working on an application that involves the scanning of barcodes. So far, i have successfully get scanned the barcodes using camera preview by following the below. link https://github.com/ZBar/ZBar However, the way it works does not really meet…
OneTwoThree
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Unavailable to use camera in Android

It's my first question but I will try to explain the problem properly. I am tring to use ZBar (Barcode reader) in my android app. I don't want to use another barcode reader installed on the phone but implement ZBar into my code. I tried tips from…
sakul
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Are Zxing and Zbar the only scanners for android application development?

I'm about to start working on some android development and was wondering after a lot of internet research that are: Zbar and Zxing the only scanning tools out there that can be implemented into android apps is there no other way or getting a code…
Michael
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Is this repo missing files, or am I using it wrong?

I'm trying to use Zbar for android for scanning QR codes. I need something minimal that only scans qr codes. That's why Im not using zxing. https://github.com/ZBar/ZBar/tree/master/android I tried adding it to my code as a module, but it seems like…
Siavash
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Get String from QR Symbol

I am using ZBAR in a project to read barcodes, and also QR. After reading a QR, I receive a String like…
Fustigador
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how to use this lib barcode scanner?

Solved Finally I solved it. You can find my code Here This is specific to this lib. I want detail explanation on how to add it in my project and use either of zxing or zbar. As instructed compile 'me.dm7.barcodescanner:zxing:1.7' is giving gradle…
Sumit Saxena
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How to decode a QR-code which is in PDF file made by paper scanning with "zbar bar code reader"

I can decode a PDF's QR-code made by PDF PRINT DRIVER (as like PrimoPDF http://primopdf.en.softonic.com/). However, I CANNOT decode a PDF's QR-code made by PAPER SCANNING, and get the following message as... WARNING: barcode data was not detected…
aaaaa0a
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Calling a method inside a delegate

I am using zBar SDK once a qr code detected a delegate will run, inside this delegate I defined a myView and used it as a overlay on the camera with information about that qr code. inside the myView there is a button which calls a method…
user2211254
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