BarCodeReader | Bar code reader using webcam | Computer Vision library

by gautamkumarjaiswal Python Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | BarCodeReader Summary

BarCodeReader is a Python library typically used in Artificial Intelligence, Computer Vision, OpenCV applications. BarCodeReader has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However BarCodeReader build file is not available. You can download it from GitHub.

Bar code reader using webcam. 2)type > python barcode_scanner.py. For detail plz visit article :

Support

Quality

Security

License

Reuse

Support

BarCodeReader has a low active ecosystem.

It has 9 star(s) with 6 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

BarCodeReader has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of BarCodeReader is current.

Quality

BarCodeReader has 0 bugs and 0 code smells.

Security

BarCodeReader has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

BarCodeReader code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

BarCodeReader is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

BarCodeReader releases are not available. You will need to build from source code and install.

BarCodeReader has no build file. You will be need to create the build yourself to build the component from source.

It has 95 lines of code, 0 functions and 1 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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BarCodeReader Key Features

No Key Features are available at this moment for BarCodeReader.

BarCodeReader Examples and Code Snippets

No Code Snippets are available at this moment for BarCodeReader.

Community Discussions

Trending Discussions on BarCodeReader

Byte communication between RPI4 and Wavesharemodule via uart

Cannot get location property from an object i get through an api call

ASPX connection with c#

How can i pass image itself not path of it to zxing library for decode pdf417

Instantiate based on 4 points

Can ZXing can read multiple barcode in the single image using C#?

Standard way to read barcode after upgrading ZXing.Net from 0.16.5 to 0.16.6

how to make barcode scanner check for barcode number from database?

OpenCvSharp with ZXing read barcodes with camera

How can I prevent my Android Location App from crashing on first time run?

QUESTION

Byte communication between RPI4 and Wavesharemodule via uart

Asked 2022-Mar-12 at 17:30

I have bought the wavesharebarcodereader module (https://www.waveshare.com/wiki/Barcode_Scanner_Module) and managed that it decodes codes and sends the data to the rpi. Now i try to use it in command Mode where i can trigger the scanning by sending a byte array.

In my understanding this is an Array of Hexadecimal bytes so i need to suffix each byte with a 0x so i wrote echo "0x7E 0x00 0x08 0x01 0x00 0x02 0x01 0xAB 0xCD" > /dev/serial0 and the voltage of the tx pin drops for a moment as if it would send but the device doesnt react or answer. I also tried without the quotes or single quotes or without the 0x suffix but the device doesnt "understand" it and doesnt react. Im sure the cabeling is correct and i tested the pins by connecting rx to tx straight and that works too. The barcodereader does work on 3.3V pins too so that is not the problem. I also tried sending the bytes with an arduino but the reader doesnt respond to that either. Sadly all the Documentation on the Reader is this: https://www.waveshare.com/w/upload/d/dd/Barcode_Scanner_Module_Setting_Manual_EN.pdf

Ive been stuck on this problem super long because im very new to uart bytes so any help would be appreciated.

...

ANSWER

Answered 2021-Nov-16 at 22:41

Alright i figured it out: i needed to use the command: printf "%b" '\x7E\x00\x08\x01\x00\x02\x01\xAB\xCD' > /dev/serial0 and that worked

Source https://stackoverflow.com/questions/69991418

QUESTION

Cannot get location property from an object i get through an api call

Asked 2021-Nov-01 at 16:16

So im getting a task by its id, im scanning a barcode i get the id and i get the data of the task, but for some reason i cant setLocation to resultData. Location, when i log resultData i get all the data of the task, when i log resultData.location i get the location object, but when i want to setLocation(resultData.location) i just get an empty object logged - note in use state default state is {}, if i just set the default state to nothing it returns undefined in the console.

...

ANSWER

Answered 2021-Nov-01 at 16:16

The real reason is the execution of setState is asynchronous. So when you console.log the state just after receiving the api response, You can not see the updated state immediately. For more detail explanation, you can checkout this post.

It seems you need the location variable in distance function only, so just return the location in loadTask function and pass it to the distance function is fine.

Source https://stackoverflow.com/questions/69797087

QUESTION

ASPX connection with c#

Asked 2021-Jun-20 at 02:52

I am trying to create a Dynamic QRcode generator with c# and aspx i don't know html much and i get some error while i try to run it on my browser(opera)

This is my c# code QCCode.aspx.cs

...

ANSWER

Answered 2021-Jun-19 at 23:01

In your sample code, the name of the button is btnQCRead, however your method to handle the click event is named btnRead_Click. The AutoEventWireup is looking for btnQCRead_Click, which won't match your method btnRead_Click. The same is true for btnQCGenerate and the unmatched method btnGenerate_Click which will need to be similarly renamed btnQCGenerate_Click.

Source https://stackoverflow.com/questions/68051331

QUESTION

How can i pass image itself not path of it to zxing library for decode pdf417

Asked 2021-Apr-05 at 16:49

Code:

...

ANSWER

Answered 2021-Jan-19 at 11:49

You cannot. if you look at the source code you will see that what it does is call a java app with the provided path (Specifically com.google.zxing.client.j2se.CommandLineRunner).

If you need to pre-process your image then you will have to save it somewhere and pass the path to it to your library

Source https://stackoverflow.com/questions/65790791

QUESTION

Instantiate based on 4 points

Asked 2021-Apr-04 at 16:11

I'm zxing to estimate the 4 corner points of the QR Code. Following is my code to estimate the corner points.

...

ANSWER

Answered 2021-Apr-04 at 16:11

I don't know that QR reader you are using but generally you basically only need 3 points e.g.

Source https://stackoverflow.com/questions/66940859

QUESTION

Can ZXing can read multiple barcode in the single image using C#?

Asked 2021-Mar-26 at 20:02

I am trying to read multiple barcodes in a jpg image using the ZXing library. But it's returning only one barcode. I am not getting any source on how I can modify my code so that it read multiple barcodes. My code is:

...

ANSWER

Answered 2021-Mar-26 at 20:02

Try this one:

Source https://stackoverflow.com/questions/66814008

QUESTION

Standard way to read barcode after upgrading ZXing.Net from 0.16.5 to 0.16.6

Asked 2021-Feb-22 at 07:02

After upgrading ZXing.Net nuget package from 0.16.5 to 0.16.6 the existing source shows the error:

Using the generic type 'BarcodeReader' requires 1 type arguments

...

ANSWER

Answered 2021-Feb-17 at 23:29

If you get desperate and can't get the BarcodeReader which inherits from BarcodeReader to be referenced correctly, you could call the base constructor of BarcodeReader directly which is called when you create a new BarcodeReader:

Source https://stackoverflow.com/questions/66250042

QUESTION

how to make barcode scanner check for barcode number from database?

Asked 2021-Jan-14 at 20:07

Is there a way to make so the barcode scanner checks for the barcode number in my local database? I've been trying to do some searches on google but there is no tutorials for something like this.

...

ANSWER

Answered 2021-Jan-07 at 18:52

import codes from '../Data/codes';

class BarCodeReader extends Component {
  constructor(props) {
    super(props);
    this.camera = null;
    this.barcodeCodes = [];

    this.state = {
      camera: {
        type: RNCamera.Constants.Type.back,
        flashMode: RNCamera.Constants.FlashMode.auto,
      },
    };
  }
  
  validateCode(scanResult){
    const codeData = codes.find(codeMetadata => {
       return codeMetadata.id === scanResult.data 
    })
    
    if(codeData){
      alert("code valid" + codeData)
    } else {
      alert("code not found")
    }
  }

  onBarCodeRead(scanResult) {
    if (scanResult.data != null) {
      if (!this.barcodeCodes.includes(scanResult.data)) {
        this.barcodeCodes.push(scanResult);
        this.validateCode(scanResult)
      }
    }
    return;
  }

  render() {
    return (
      
         {
            this.camera = ref;
          }}}
          onBarCodeRead={this.onBarCodeRead.bind(this)}
        />
      
    );
  }
}

const codes = [
  {
    id: "code-id-text"
    name: 'text',
    company: 'text',
    extra: '7 310350 118670',
  },

Source https://stackoverflow.com/questions/65569708

QUESTION

OpenCvSharp with ZXing read barcodes with camera

Asked 2020-Sep-02 at 21:44

I'm having a problem with integrating Zxing libary with openCvSharp. I'm trying to read barcodes live with camera.

It throws an exception at the line Result result = barcodeReader.Decode(test); that gives;

...

ANSWER

Answered 2020-Sep-02 at 19:15

Depending on the .Net target platform you can use the bitmap directly with the method Decode. Only the .Net core/standard versions don't support the Bitmap classes directly.

Source https://stackoverflow.com/questions/63707116

QUESTION

How can I prevent my Android Location App from crashing on first time run?

Asked 2020-Jul-16 at 12:26

I have created an Android App which opens a Map Fragment and is to create 2 markers:

Marker 1 is the current location (which i believe may be the cause of the problem)

Marker 2 which gets the coords(LatLng) passed from a previous Activity

My problem is that when I run the app for the first time it crashes ... stops responding I have made sure all the permissions and manifest file is correct. But i have made the following observation : After the app crashes if i open Google Maps close everything and run the app again it works fine.

The following error message is generated:

2020-07-16 09:51:16.363 3833-3833/com.notbytes.barcodereader E/AndroidRuntime: FATAL EXCEPTION: main Process: com.notbytes.barcodereader, PID: 3833 java.lang.NullPointerException: Attempt to invoke virtual method 'double android.location.Location.getLatitude()' on a null object reference at com.notbytes.barcodereader.MainActivity2$4.onSuccess(MainActivity2.java:197) at com.notbytes.barcodereader.MainActivity2$4.onSuccess(MainActivity2.java:192) at com.google.android.gms.tasks.zzn.run(Unknown Source) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

Any help or assistance will be greatly appreciated.

TIA

...

ANSWER

Answered 2020-Jul-16 at 12:26

Sometimes the getLastLocation() method might return null, because the fused location provider doesn't update the location cache after the device is restarted. If getLastLocation() returns null unexpectedly:

Location is turned off in the device settings. The result could be null even if the last location was previously retrieved because disabling location also clears the cache.
The device never recorded its location, which could be the case of a new device or a device that has been restored to factory settings
Google Play services on the device has restarted, and there is no active Fused Location Provider client that has requested location after the services restarted. To avoid this situation you can create a new client and request location updates yourself. For more information, see Receive Location updates.

But in your case, I guess you have not added any check before getting latitude and longitude.

Below is a sample code of how to get and set location.

Source https://stackoverflow.com/questions/62930103

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

Vulnerabilities

No vulnerabilities reported

Install BarCodeReader

You can download it from GitHub.
You can use BarCodeReader like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

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: