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Unity调用手机摄像机识别二维码

2019-07-24 14:49 1421 查看

本文实现Unity调用手机摄像,拍摄,然后识别二维码,显示二维码的内容。

需要导入一个zxing.unity.dll文件,现在这个脚本的识别数据是放在Updata里边扫描的 数据量特别大会卡  要是用的话就自己做一下一秒执行一次。我这里没有弄

下载地址:zxing.unity.dll

代码:

using System.Threading;
using UnityEngine;
using ZXing;

public class WebCameraScript : MonoBehaviour
{
public string LastResult;
public string Lastresult;
public Color32[] data;
private bool isQuit;

public GUITexture myCameraTexture;
private WebCamTexture webCameraTexture;

private void Start()
{
// bool success = CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);
// Checks how many and which cameras are available on the device
for (int cameraIndex = 0; cameraIndex < WebCamTexture.devices.Length; cameraIndex++)
{
// We want the back camera
if (!WebCamTexture.devices[cameraIndex].isFrontFacing)
{
//webCameraTexture = new WebCamTexture(cameraIndex, Screen.width, Screen.height);
webCameraTexture = new WebCamTexture(cameraIndex, 200, 200);

// Here we flip the GuiTexture by applying a localScale transformation
// works only in Landscape mode
myCameraTexture.transform.localScale = new Vector3(1, 1, 1);
}
}

// Here we tell that the texture of coming from the camera should be applied
// to our GUITexture. As we have flipped it before the camera preview will have the
// correct orientation
myCameraTexture.texture = webCameraTexture;
// Starts the camera
webCameraTexture.Play();
//enabled=WebCamTexture.s
}

public void ShowCamera()
{
myCameraTexture.guiTexture.enabled = true;
webCameraTexture.Play();
}

public void HideCamera()
{
myCameraTexture.guiTexture.enabled = false;
webCameraTexture.Stop();
}

private void OnGUI()
{
GUI.Label(new Rect(60, 30*1, Screen.width, 20), "LastResult:" + LastResult);
if (GUI.Button(new Rect(0, 0, 100, 100), "ON/OFF"))
{
if (webCameraTexture.isPlaying)
HideCamera();
else
ShowCamera();
}
}

private void Update()
{
//data = new Color32[webCameraTexture.width * webCameraTexture.height];
data = webCameraTexture.GetPixels32();

DecodeQR(webCameraTexture.width, webCameraTexture.height);
}

private void DecodeQR(int W, int H)
{
if (isQuit)
return;
// create a reader with a custom luminance source
var barcodeReader = new BarcodeReader {AutoRotate = true, TryHarder = true};

//    while (true)
{
try
{
// decode the current frame
Result result = barcodeReader.Decode(data, W, H);
if (result != null)
{
LastResult = result.Text;
// shouldEncodeNow = true;
print("i read out::" + result.Text);
}

// Sleep a little bit and set the signal to get the next frame
Thread.Sleep(200);
data = null;
}
catch
{
}
}
}
}

以上就是本文的全部内容,希望对大家的学习有所帮助

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标签:  Unity 摄像机 二维码