qr-code-reader | php识别二维码 - | QRCode Processing library

 by   baagee PHP Version: v1.2 License: GPL-2.0

kandi X-RAY | qr-code-reader Summary

kandi X-RAY | qr-code-reader Summary

qr-code-reader is a PHP library typically used in Utilities, QRCode Processing applications. qr-code-reader has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

qr-code-reader
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            kandi-support Support

              qr-code-reader has a low active ecosystem.
              It has 53 star(s) with 20 fork(s). There are 6 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 3 open issues and 1 have been closed. On average issues are closed in 75 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of qr-code-reader is v1.2

            kandi-Quality Quality

              qr-code-reader has 0 bugs and 0 code smells.

            kandi-Security Security

              qr-code-reader has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              qr-code-reader code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              qr-code-reader is licensed under the GPL-2.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              qr-code-reader releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              qr-code-reader saves you 2481 person hours of effort in developing the same functionality from scratch.
              It has 5400 lines of code, 375 functions and 51 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed qr-code-reader and discovered the below as its top functions. This is intended to give you an instant insight into qr-code-reader implemented functionality, and help decide if they suit your requirements.
            • Builds an array of ECB versions
            • Performs cross - check on diagonal state
            • Calculates the black points
            • Extract pure bits from image
            • Initialize the RGBLuminance source
            • Finds the blacklisted modules
            • Returns an array of DataBlocks used by the provided codec .
            • Initializes the GD image source .
            • Parses a string into an array .
            • Decode a QR code .
            Get all kandi verified functions for this library.

            qr-code-reader Key Features

            No Key Features are available at this moment for qr-code-reader.

            qr-code-reader Examples and Code Snippets

            使用
            PHPdot img1Lines of Code : 5dot img1License : Strong Copyleft (GPL-2.0)
            copy iconCopy
            include __DIR__.'/vendor/autoload.php';
            
            $qrcode = new \Zxing\QrReader('./qr.png');  //图片路径
            $text = $qrcode->text(); //返回识别后的文本
            echo $text;
              
            需要
            PHPdot img2Lines of Code : 2dot img2License : Strong Copyleft (GPL-2.0)
            copy iconCopy
            PHP >= 5.3
            GD Library
              

            Community Discussions

            QUESTION

            How to scan a DPM datamatrix from a mobile app
            Asked 2020-Feb-10 at 03:29

            I'm trying to leverage ZXing in an Android app to scan data matrixes. So far I'm successful with printed data matrixes such as this:

            But other data matrixes printed by laser or punched have circle-looking marks instead of square-looking ones.

            These present a problem. The only app I've found capable of scanning this is QRDroid. This article says that QRDroid uses ZXing so I'm thinking if they can, there must be a way. Unfortunately QRDroid is not an open source project so I don't know how.

            There's the possibility of course that QRDroid is using an algorithm to somehow transform the circled marks in to squared ones before they attempt to read the data matrix. I don't know anything about image manipulation in Java, so I can't imagine how this is done.

            My question is whether there's a way to tweak ZXing to read this type of data matrix, or if there's any library I can use to manipulate the image to make it readable by ZXing.

            Edit:

            If I use an image editor -e.g. I used https://www.befunky.com- to and apply a blur of 10, then it looks like a normal printed data matrix and my scan works. How should I go about doing this in my Android app?

            ...

            ANSWER

            Answered 2018-Aug-16 at 08:28

            After some research I found out that this type of marking is not really considered a standard data matrix but rather referred to by the manufacturing industry as a DPM, which stands for "Direct Part Marking", although I've read other sources call it "Dot Peen Marking" or "Dot Peen Matrix"

            I posted this same question on an already existing issue in the Zxing repository and this was the reply I got:

            The problem is the WhiteRectDetector. It finds a white rectangle inside the code, similar to this issue. If you rotate the image slightly (say 10°) or you blur it as you did or you did a suitably sized pixel dilation followed by an erosion, you'll get something that should (mostly) be detectable.

            Modifying the WhiteRectDetector, to allow for dots rather than squares was not really an option for me due to deadlines, so I ended up switching from Zxing to Scandit, which is proven to be able to scan this.

            Scandit is a proprietary library, but I haven't really found any other alternatives. You can get a trial license though. For those wanting to try it out to scan DPM's, the documentation is not very clear on how to enable scans for this symbology, so here's the trick.

            In Android:

            Source https://stackoverflow.com/questions/48908115

            QUESTION

            Javascript inline script onchange not working
            Asked 2019-Sep-25 at 13:24

            i'm having a problem on making my code to adjust to my web server, because of the security purposes, all inline javascript code to my html is not allowed.

            everything is already okay i'm just having a hard time converting my other code to pure javascript

            Here is my existing code,,,

            ...

            ANSWER

            Answered 2019-Sep-25 at 13:24

            The event listener you are using is faulty, instead of listenning to 'onchange' you have to listen to 'change' like so:

            document.querySelector("#openQRCamera").addEventListener('change', () => {

            //remove the node as parameter and get it with javascript:

            var node = document.getElementById('openQRCamera'); ..

            Source https://stackoverflow.com/questions/58097091

            QUESTION

            Trying to scan a QR Code then call an API
            Asked 2019-Apr-18 at 11:24

            I am trying to create a mobile app where the user will scan a unique QR code, the program should then perform a check to make sure that the correct QR code was scanned (instead of just a random QR code) and if the correct code QR was scanned the API should be called. I found a javascript qr scanner that works on mobile phones from https://www.sitepoint.com/create-qr-code-reader-mobile-website/. This all works perfectly in that it accesses the devices camera and scans a QR code but I am struggling on how to perform a check that the correct QR code was scanned. For the sake of testing the "correct" QR code just translates to a string "hello".

            I have tried using alert(res) to find the point where the QR is decoded. When I try to use an if statement to compare the decoded QR to a variable equivalent to "hello", the QR scanner just stops working.

            The full code can be seen at https://www.sitepoint.com/create-qr-code-reader-mobile-website/

            Here is the part which decodes the QR image.

            ...

            ANSWER

            Answered 2019-Apr-18 at 11:24

            Using the above link from sitepoint.com and following the tutorial I didn't run into any issues with the returned response. Try checking if it works like this:

            Source https://stackoverflow.com/questions/55744626

            QUESTION

            BarcodeDetector should only scan when a Button is clicked
            Asked 2019-Mar-28 at 15:06

            I'm trying to write an app with an integrated barcode scanner. I followed this tutorial: https://www.c-sharpcorner.com/article/xamarin-android-qr-code-reader-by-mobile-camera/

            The scan works fine and very fast (before I used ZXing.Net.Mobile and it is horrible slow). Now I need some help to integrate that the app only detects one barcode when the user presses a button and not the whole time. Maybe a delay would solve the problem too.

            ...

            ANSWER

            Answered 2019-Mar-28 at 13:12

            You need add this after scan process triggered. "-" operator must be added to prevent non-stop working.You plugged-in event in this line

            Source https://stackoverflow.com/questions/55398303

            QUESTION

            ZXing QRCodeReader Java build error
            Asked 2018-Jan-06 at 19:26

            I am learning how this package works but having issues just getting it to build.

            I grabbed ZXing reader from here ==> https://github.com/zxing/zxing

            I also went to this site for a guide ==> https://www.callicoder.com/qr-code-reader-scanner-in-java-using-zxing/

            So i opened up the pom.xml and i get all the modules .github, .idea, android, android-core, android-integration, core, docs, javase, src, zxing.appspot.com and zxingorg.

            I then go to zxingorg/src/main/java/com.google.zxing.web and same for core module pasted qrcodereader in there and tried running it and i get this error.

            "Error:Android Pre Dex: [android] Android SDK is not specified"

            Now i do get an error saying android sdk needed api level 22 but....im not even developing for android. I was just planning on working just for pc/raspberry pi applications. Not android.

            I was under the presumption that the ZXing library was usable for desktop applications and the like??

            I am using IntelliJ.

            ...

            ANSWER

            Answered 2018-Jan-06 at 19:26

            https://github.com/callicoder/qr-code-generator-and-reader

            this was the answer. i was importing all of it and it was using the wrong version and it was android modules attached.

            i imported the above and worked like a charm. Please close this.

            Source https://stackoverflow.com/questions/48108799

            QUESTION

            QR Code Scanning not working
            Asked 2017-Oct-06 at 06:10

            So I have just taken over an iOS project as their first in-house dev, where previously this app had been developed by an agency.

            One of the features of the app is that it needs to scan QR codes—by the look of the code the previous developers have followed this tutorial on AppCoda to implement the QR scan. Everything looks fine and I can't see anything wrong with the code yet it isn't working.

            I also downloaded the completed tutorial project and that worked when I tried the QR scan. I also tried copying and pasting every single line so that it was identical to the working tutorial yet no luck.

            I'm tearing my hair out trying to figure out why it isn't working.

            Any help is much appreciated!

            ...

            ANSWER

            Answered 2017-Oct-05 at 08:39

            You're not connecting your class to AVCaptureMetadataOutput's delegate, that's why the AVCaptureMetadataOutputObjectsDelegate functions are not being invoked. More info: https://developer.apple.com/documentation/avfoundation/avcapturemetadataoutputobjectsdelegate

            Try this:

            Source https://stackoverflow.com/questions/46580867

            QUESTION

            iOS QR code scanner triggering actions multiple times
            Asked 2017-Mar-05 at 13:35

            I am using the QR code reader code from AppCoda (http://www.appcoda.com/qr-code-reader-swift/#comments) and converted it to Swift 3. The base code works perfectly fine.

            However, what I want to achieve is to retrieve a String from the QR reader, store it in a variable, and pass the variable to a following view controller. So I added a bit of code to it to get the following:

            ...

            ANSWER

            Answered 2017-Mar-03 at 07:29

            I've just solved the same problem. You have to create an unwind to the previous view.

            To do this in the interface builder, you have to ctrl-drag from the controller to the exit in the controller you're actually in (not the one you want to unwind).

            Once you have done this, you have to set an identifier to this unwind segue (in your case "showMenu". To do this, you have to the unwind segue from the scenes menu on the left part and set the identifier name on the Attributes inspector.

            Source https://stackoverflow.com/questions/42550348

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install qr-code-reader

            You can download it from GitHub.
            PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.

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          • HTTPS

            https://github.com/baagee/qr-code-reader.git

          • CLI

            gh repo clone baagee/qr-code-reader

          • sshUrl

            git@github.com:baagee/qr-code-reader.git

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