Antares QR Code

Do you guys plan on supporting WebcamTexture directly? Because as far as I know, we have to use Get/SetPixels32 and Apply to copy the pixels over to a Texture2D so we can process it with the QR library. Because your library probably reads the pixels back from the texture, this seems like a lot of overkill (and indeed, our framerate suffers a lot from it because we need to do somewhat continuous scanning for a while in our game).

 

Hi Neodrop,

I tried to integrate this plugin with iOS project. However the texture is 90 degree rotated and flipped invert horizontally.....orz
Does anyone know how to fix this since the QR plugin doesn't recognize the texture.
I tried to flip the Color32[] but the GetPixels32() only return a 1d array but not 2d.....orz
A sample project of how this plugin works in iOS environment will be very great.

Here is the code that I use:

Code (csharp):

1. using Antares.QRCode;
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class PhotoMe : MonoBehaviour {
6.    
7.     public GUIText DisplayText;
8.     public GUITexture DisplayCam;
9.    
10.     private WebCamTexture cam;
11.     private Texture2D tex;
12.     private Color32[] data;
13.    
14.     private bool initDone = false;
15.    
16.     IEnumerator Start () {
17.         cam = new WebCamTexture(512, 512, 15);
18.         cam.Play();
19.         while(true)
20.         {
21.             if(cam.didUpdateThisFrame)
22.             {
23.                 data = new Color32[cam.width * cam.height];
24.                 tex = new Texture2D(cam.width, cam.height, TextureFormat.RGB24, false);
25.                 initDone = true;
26.                 break;
27.             }
28.             else
29.                 yield return null;
30.         }
31.     }
32.    
33.     void Update(){
34.         if(initDone  cam.didUpdateThisFrame)
35.         {
36.             cam.GetPixels32(data);
37.             tex.SetPixels32(data);
38.             tex.Apply();
39.             DisplayCam.texture = tex;
40.         }
41.     }
42.    
43.      public void OnGUI()
44.     {
45.         GUILayout.BeginArea(new Rect(10, 10, Screen.width - 20, Screen.height - 20));
46.         GUILayout.BeginHorizontal();
47.         if (GUILayout.Button("Decode"))
48.         {
49.             Result result = QRCodeProcessor.Decode(tex);
50.             if (result!= null)
51.             {
52.                 DisplayText.text = result.Text;
53.             }
54.             else
55.             {
56.                 DisplayText.text = "This is not QR code!";
57.             }
58.         }
59.         GUILayout.EndHorizontal();
60.         GUILayout.EndArea();
61.     }
62. }
63.  

 

You can look at http://forum.unity3d.com/threads/23904-Rotate-a-texture-with-an-arbitrary-angle.

 

What about mirror the texture2D? How can I know which pixel in the 1d color32[] ?

 

it's so obvious... try this function

PHP:

    public static Color GetColor(Color[] pixels, int textureWidth, int x, int y)
    {
        return pixels[textureWidth * y + x];
    }


And you can use GetPixel and SetPixel in 2d.

 

Thanks very much...
Seems I missed GetPixel this function...orz
I thought there is only GetPixels32 before >.<"

 

You don't need to use Apply.. but anyway, this is a insane overkill.

We have 3 steps completely unnecessary:
1. copying pixels from camera into buffer (flipping the image)
2. copying buffer to texture
3. copying from texture to buffer (probably inside QR decompress)

What I have at disposal from iPads camera and QCAR kit is a byte[] , size of buffer, resolution and pixel format. With that you don't need anything else.. just use it.

Please guys, can you make modifications and implement direct access to already available memory!
It would improve performance amazingly

Thanx

 

I really need to read QRcode from Texture
Can someone give me sample to do that?
Because when I'm convert the texture to Texture2D, Antares won't read it.

This is my code:

Code (csharp):

1.        void Update(){
2.  
3.         if(initDone)
4.  
5.         {
6.             tex = DisplayCam.texture as Texture2D;
7.                        
8.             Result result = QRCodeProcessor.Decode(tex);
9.  
10.             if (result!= null)
11.  
12.             {
13.                  DisplayText.text = result.Text;
14.             }
15.  
16.         }
17.  
18.     }
19.  
20. }
21.  
22.  

There no response when I running it.

Thanks

 

Hy Neodrop,

I bought the plugin but always returns null.
I downloaded other QR-Code applications from market place and iTunes Store and all return the contents correctly.
The example of your video (http://www.youtube.com/watch?v=Sw8T3JUG-0c) does not work, I'm using the Texture2D and GUITexture but always returns null.

Works only Encode> Decode, but I need to get the contents from Texture2D.

I am using Unity 3.5.1.
I also tried the Unity 3.4.2 as well and does not work.

tks

 

This plugin don't work with GUITexture.
Can you past here your code?

 

I am also having some images pulling a result from a Texture2D. I went back and followed the YouTube video and get no result from that either.

I'm using Unity 3.5.2

 

Sorry guys, I hadn't followed the demo exactly and was missing the read/write check box in the texture import. I also had to change the compression. I am still unable to get the camera to recognise it but I feel this may be due to the camera rotation. I will post when I get it sorted.

 

Hey!

Antares QR Code crashes on QR-Code vCards in Android. Can you fix this?

 

I can not decode this QR image using Antares QR. However, other QR decoder can decode.
Could you fix this problem?

I'm using Unity 3.5.3 and WebCamTexture.

 

Hello,

Great plugin, just need to know if it can red QR code from the mobile phone camera .

Thanks

 

This plugin work with Texture2D. It can't work with the video stream.

 

Hello, I've just been trying to get it to work with a webcam. I've altered your demo code to add a new button that takes a frame from the webcam and tries to decode it.

I've been testing it with a handheld webcam that I point at the QR code on the spinning cube onscreen when the demo scene runs. I've also tried it with some other QRCodes from around the web, and I can't get them to decode.

Here's the modified demo script:

Code (csharp):

1.  
2.  
3. using Antares.QRCode;
4. using UnityEngine;
5.  
6. public class QRCodeDemo : MonoBehaviour
7. {
8.  
9.     public Texture2D qrCodeImage;
10.     private string _textToEncode = "Hello QRCode!";
11.     private int _width = 128;
12.     private int _height = 128;
13.  
14.     private string _decodedString = "";
15.    
16.     private WebCamTexture m_camTexture;
17.    
18.     void Start()
19.     {
20.         WebCamDevice[] devices = WebCamTexture.devices;
21.         foreach (WebCamDevice device in devices)
22.         {
23.             Debug.Log(device.name);
24.         }
25.         m_camTexture = new WebCamTexture(devices[0].name, 640, 480, 30);
26.         renderer.material.mainTexture = m_camTexture;
27.         m_camTexture.Play();
28.     }
29.  
30.     public void OnGUI()
31.     {
32.         GUILayout.BeginArea(new Rect(10, 10, Screen.width - 20, Screen.height - 20));
33.         GUILayout.BeginHorizontal();
34.         {
35.             GUILayout.BeginVertical(GUI.skin.box, GUILayout.Width(300), GUILayout.ExpandHeight(true));
36.             {
37.                 GUILayout.BeginVertical(GUI.skin.box);
38.                 {
39.                     GUILayout.Label("Text to encode:");
40.                     _textToEncode = GUILayout.TextArea(_textToEncode, GUILayout.Height(50));
41.                 }
42.                 GUILayout.EndVertical();
43.  
44.  
45.  
46.                 GUILayout.BeginVertical(GUI.skin.box);
47.                 {
48.                     GUILayout.Label("Texture width: " + _width);
49.                     _width = (int)GUILayout.HorizontalSlider(_width, 64, 512);
50.                 }
51.                 GUILayout.EndVertical();
52.  
53.                 GUILayout.BeginVertical(GUI.skin.box);
54.                 {
55.                     GUILayout.Label("Texture height: " + _height);
56.                     _height = (int)GUILayout.HorizontalSlider(_height, 64, 512);
57.                 }
58.                 GUILayout.EndVertical();
59.  
60.                 if (GUILayout.Button("Encode"))
61.                 {
62.                     if (qrCodeImage != null) Destroy(qrCodeImage);
63.                     qrCodeImage = QRCodeProcessor.Encode(_textToEncode, _width, _height );
64.                 }
65.  
66.                 GUILayout.Space(10);
67.                 GUILayout.BeginVertical(GUI.skin.box);
68.                 GUILayout.EndVertical();
69.                 GUILayout.Space(10);
70.                
71.                 GUILayout.Box(m_camTexture);
72.  
73.                
74.  
75.                 if (GUILayout.Button("Decode"))
76.                 {
77.                     var result = QRCodeProcessor.Decode(qrCodeImage);
78.                     if (result!= null)
79.                     {
80.                         _decodedString = result.Text;
81.                     }
82.                     else
83.                     {
84.                         _decodedString = "Error while reading QRCode Image!";
85.                     }
86.                 }
87.                
88.                 GUI.enabled = qrCodeImage != null;
89.                 if (GUILayout.Button("Decode From Webcam"))
90.                 {
91.                     RenderTexture rndrTxtr = new RenderTexture(m_camTexture.width, m_camTexture.height, 24);
92.                     Graphics.Blit(m_camTexture, rndrTxtr);
93.                     RenderTexture oldActiveTexture = RenderTexture.active;
94.                     RenderTexture.active = rndrTxtr;
95.                     Texture2D camTex2d = new Texture2D(m_camTexture.width, m_camTexture.height);
96.                     camTex2d.ReadPixels(new Rect(0, 0, m_camTexture.width, m_camTexture.height), 0, 0);
97.                     RenderTexture.active = oldActiveTexture;
98.                    
99.                    
100.                     var result = QRCodeProcessor.Decode(camTex2d);
101.                     if (result!= null)
102.                     {
103.                         _decodedString = result.Text;
104.                     }
105.                     else
106.                     {
107.                         _decodedString = "Error while reading QRCode Image!";
108.                     }
109.                 }
110.                
111.                
112.                
113.  
114.                 GUILayout.BeginVertical(GUI.skin.box);
115.                 {
116.                     GUILayout.Label("Decoded text:");
117.                     GUILayout.TextArea(_decodedString, GUILayout.Height(50));
118.                 }
119.                 GUILayout.EndVertical();
120.  
121.                 GUI.enabled = true;
122.             }
123.             GUILayout.EndVertical();
124.  
125.  
126.  
127.  
128.             GUILayout.BeginVertical(/*GUI.skin.box,*/ GUILayout.ExpandHeight(true));
129.             {
130.                 GUILayout.FlexibleSpace();
131.                 GUILayout.BeginHorizontal();
132.                 {
133.                     GUILayout.FlexibleSpace();
134.                     if (qrCodeImage != null)
135.                     {
136.                         //GUILayout.Label(qrCodeImage);
137.                     }
138.                     else
139.                     {
140.                         GUILayout.Label("Press \"Encode\" to generate QRCode texture.");
141.                     }
142.                     GUILayout.FlexibleSpace();
143.                 }
144.                 GUILayout.EndHorizontal();
145.                 GUILayout.FlexibleSpace();
146.             }
147.             GUILayout.EndVertical();
148.         }
149.         GUILayout.EndHorizontal();
150.         GUILayout.EndArea();
151.     }
152.  
153.  
154.     public void Update()
155.     {
156.         transform.rotation *= Quaternion.Euler(0.1f, 0.2f, 0.3f);
157.  
158.         this.renderer.material.mainTexture = qrCodeImage;
159.     }
160.  
161. }
162.  
163.  
164.  

 

Okay - I fixed it - I wasn't correctly converting the texture to a Texture2D.

However, I do find that the QR code reading is not very robust.

 

I have upload new version (1.3) but it many days in pending. I don't know why.

 

The version on Asset Store is still 1.22. Any idea how long until 1.3 becomes available? I am waiting for this version before I buy it.

Also, does this have direct Webcamtexture access?

 

I will write to the Store support.

1.3 have no direct webcam access. As before, you should pass Texture2D to the plugin methods.

 

1.3 has been accepted.

 

Can it return the position where the code was found on the image?

 

What position ?

 

Sorry for unclear question - I mean the image, which is not the code itself, but the image, which contain the QR Code. I need the position on the texture, where the library found the code to replace it with my own object/image.

 

Yeah or at the very least I'd like to be able to highlight the QR code on the texture somehow. Having the 2D coordinates of where the QR Code was recognized would help.

 

Sorry - currently, this ability is not supported.

 

Hi,

I just bought Antares Library. In Unity unmodified examples are working, but in XCode I get the error shown in attached image. I'm using XCode 4.4.1. Please advise further

 

I will looking for it in next few days, but this picture is not enougth clear.

 

Hello Neodrop!
First of all, thanks a lot for your plugin!

But I'm experiencing an issue while trying to decode a QRCode that is encoded with special chars (included in the extended ASCII table). When I apply a small algo to crypt a string and then create the qr code with the crypted string, the plugin cannot even detect the qr code, while other QR code reader as QR Droid can detect the QR code.

As far as I'm concerned, I'm working on Android and iPhone, and Unity 3.5.

Do you have any idea about this problem?
Thanks a lot.

EDIT: I've finally found a way to avoid this issue. It seems like if there is one or more very special char, the QR Code cannot be decoded... Unless you tell me I forgot any important detail?

 

The main developer of this plugin is PAX
but, unfortunately, his stop the support of this plugin. Try to call him direct or by PM. In this case I'm just a publisher.

 

I can get Xcode to compile to a Mac Client. But to iOS it bombs like yours. But I guess at some point the iOS version worked ?

 

Please provide solution for this error it will not able build an app for iOS...



it gv me error in XCODE

Code (csharp):

1. CompileC /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/Antares.QRCode.dll.o Libraries/Antares.QRCode.dll.s normal armv7 assembler-with-cpp com.apple.compilers.llvm.clang.1_0.compiler
2.     cd "/Users/unity3d/QR code/QR"
3.     setenv LANG en_US.US-ASCII
4.     setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
5.     /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x assembler-with-cpp -arch armv7 -fmessage-length=0 -Wno-trigraphs -fpascal-strings -O0 -Wno-missing-field-initializers -Wno-missing-prototypes -Wreturn-type -Wformat -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-shorten-64-to-32 -Wno-newline-eof -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -Wdeprecated-declarations -g -fvisibility=hidden -Wno-sign-conversion -miphoneos-version-min=6.0 -iquote /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/xtpl-generated-files.hmap -I/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/xtpl-own-target-headers.hmap -I/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/xtpl-all-target-headers.hmap -iquote /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/xtpl-project-headers.hmap -I/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Products/include -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include -I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include -I/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/DerivedSources/armv7 -I/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/DerivedSources -F/Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Products -mno-thumb -MMD -MT dependencies -MF /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/Antares.QRCode.dll.d --serialize-diagnostics /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/Antares.QRCode.dll.dia -c "/Users/unity3d/QR code/QR/Libraries/Antares.QRCode.dll.s" -o /Users/unity3d/Library/Developer/Xcode/DerivedData/Unity-iPhone-geaklgybdnluhueyrjzetzyufjfj/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Objects-normal/armv7/Antares.QRCode.dll.o
6.  
7. /Users/unity3d/QR code/QR/Libraries/Antares.QRCode.dll.s:29339:1: error: invalid symbol redefinition
8. plt__class_init_____:
9. ^
10. /Users/unity3d/QR code/QR/Libraries/Antares.QRCode.dll.s:29484:1: error: invalid symbol redefinition
11. plt__class_init_____:
12. ^
13. Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1
14.  

 

I can't figure what this errors mean. I never saw such one.

 

Any solution about that error? I got the same today !!!!



EDIT: I forgot to mention that I use Unity 4.1.5f1 and the 1.3 version of your plugin.

 

I use Unity 4.3.4 and Xcode 5. I got the same error. Can you helm me please.

/Users/me/Documents/PROJECT/_EXPORT Xcode/QR Scan/Libraries/Antares.QRCode.dll.s:31600:1: error: invalid symbol redefinition
plt__class_init_____:
^
/Users/me/Documents/PROJECT/_EXPORT Xcode/QR Scan/Libraries/Antares.QRCode.dll.s:31745:1: error: invalid symbol redefinition
plt__class_init_____:
^
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

 

Try use different stripping mode, or turn off it.

 

I'm already change it in Unity but it's still error

/Users/me/Documents/PROJECT/_EXPORT Xcode/QR Scan/Libraries/Antares.QRCode.dll.s:31600:1: error: invalid symbol redefinition
plt__class_init_____:
^
/Users/me/Documents/PROJECT/_EXPORT Xcode/QR Scan/Libraries/Antares.QRCode.dll.s:31745:1: error: invalid symbol redefinition
plt__class_init_____:
^
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

 

I use Unity 4.3.4 and Xcode 5.1 .
I can't build on Xcode.

get this error :
/Users/eits/Desktop/QR/Libraries/Antares.QRCode.dll.s:31600:1: error: invalid symbol redefinition
plt__class_init_____:
^
/Users/eits/Desktop/QR/Libraries/Antares.QRCode.dll.s:31745:1: error: invalid symbol redefinition
plt__class_init_____:
^
Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1

 

Hi,
As for me, I am testing the related java qr code generation projects these days. Do you have any ideas about it? Or any good suggestion? I am totally a green hand on barcode generating field. Any suggestion will be appreciated. Thanks in advance.


Best regards,
Arron

 

As I see, it's seems as good solution for Unity. But the price is a bit expensive

 

Neodrop,

What encoding are the strings returned with? Can this return raw bytes as a byte[]? We have an application where we need to read binary data from a QRCode, which naturally will have some non-legible bytes on it (such as 0x0), but all the libraries I tried so far are returning strings, and obviously mess up the non-legible chars, corrupting the code.

Can your library be used to solve this?

Best regards.

 

Thank you for your sharing. I want to know can I customize the size of qr code in .net project?

 

Hi there,
Are you still supporting this asset?, I want to know if I can use it on latest Android/iOS versions,
regards,

 

hello，I used your package, but when it couldn't Decode the QRcode,it threw an error. i was trying to use the "try catch" to get it, but it couldn't prevent the error from throwing!What should I do?
QRCodeReaderException: Exception of type 'Antares.QRCode.QRCodeReaderException' was thrown.
aq.b ()
aq.a (System.Collections.Hashtable A_0)
av.a (System.Collections.Hashtable A_0)
r.a (UnityEngine.Texture2D A_0, System.Collections.Hashtable A_1)
r.a (UnityEngine.Texture2D A_0)
Antares.QRCode.QRCodeProcessor.Decode (UnityEngine.Texture2D image)
QRCodeDemnGUI () (at Assets/QRCode/DemoScene/QRCodeDemo.cs:63)