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

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

X-Ray Key Features Code Snippets(2)Community Discussions(7)Vulnerabilities Install Support

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

Support

Quality

Security

License

Reuse

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.

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

Quality

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

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.

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.

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

PHP

Lines of Code : 5

License : Strong Copyleft (GPL-2.0)

Copy

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

PHP

Lines of Code : 2

License : Strong Copyleft (GPL-2.0)

Copy

PHP >= 5.3
GD Library

Community Discussions

Trending Discussions on qr-code-reader

How to scan a DPM datamatrix from a mobile app

Javascript inline script onchange not working

Trying to scan a QR Code then call an API

BarcodeDetector should only scan when a Button is clicked

ZXing QRCodeReader Java build error

QR Code Scanning not working

iOS QR code scanner triggering actions multiple times

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.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: