捕捉的相机图像正在模糊 [英] Captured camera image is looking blurry

问题描述

我的问题拍摄的图像在寻找我的应用程序，其中模糊作为与设备摄像头组件捕获的图像看起来不错 - 在拍摄按钮的东西自动变焦效果是怎么回事，一旦用户点击。可有一个人帮我实现这个场景如何和我应该在哪里申请

这里是code：

 公共无效surfaceChanged（SurfaceHolder架，INT格式，诠释的宽度，高度INT）{
    //现在，尺寸是已知的，设置相机参数，并开始
    //将preVIEW。
    Camera.Parameters参数= camera.getParameters（）;
    版本整数=的Integer.parseInt（Build.VERSION.SDK）;
    如果（版本＆GT; Build.VERSION_ codeS.ECLAIR_MR1）
    {
        Log.d（TAG，------＆GT;版本比2.1 eclari更大）;
        清单＆LT;尺寸和GT;大小= parameters.getSupported previewSizes（）;
        大小optimalSize = getOptimal previewSize（尺寸，宽，高）;
        parameters.set previewSize（optimalSize.width，optimalSize.height）;
    }
    其他
    {
        Log.d（TAG，------＆GT;版本低于2.1 eclari）;
        parameters.set previewSize（ApplicationInitiator.screenW，ApplicationInitiator.screenH）;
    }    清单＆LT;串GT; focusModes = parameters.getSupportedFocusModes（）;
    如果（focusModes.contains（Camera.Parameters.FOCUS_MODE_AUTO））
    {
        parameters.setFocusMode（Camera.Parameters.FOCUS_MODE_AUTO）;
    }    parameters.setJpegQuality（100）;
    camera.setParameters（参数）;
    camera.start preVIEW（）;
}
 

解决方案

好了，你的文字你谈论捕获的图像，但我没有看到你的code任何事情拍照，无论如何，如果你想获得一个集中的照片，你必须做的是注册一个AutoFocusCallback拍照获得焦点时：

  Camera.AutoFocusCallback mAutoFocusCallback =新Camera.AutoFocusCallback（）{
    @覆盖
    公共无效onAutoFocus（布尔成功，相机摄像头）{
        camera.takePicture（NULL，NULL，mPictureCallbackRaw）;
    }
};Camera.PictureCallback mPictureCallbackRaw =新Camera.PictureCallback（）{
    公共无效onPictureTaken（字节[]数据，相机C）{
        //（...）
    }
};公共无效takeFocusedPicture（）{
    mCamera.autoFocus（mAutoFocusCallback）;
}
 

My issue captured image is looking blurry in my application where as the image that is captured with the device camera component is looking good - something auto zoom effect is going once user click on capture button. can some one help me to achieve this scenario how and where should i apply.

here is the code:

public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {
    // Now that the size is known, set up the camera parameters and begin
    // the preview.
    Camera.Parameters parameters = camera.getParameters();
    Integer version = Integer.parseInt(Build.VERSION.SDK);
    if(version > Build.VERSION_CODES.ECLAIR_MR1)
    {
        Log.d(TAG, "------> version greater than eclari 2.1");
        List<Size> sizes = parameters.getSupportedPreviewSizes();
        Size optimalSize = getOptimalPreviewSize(sizes, width, height);
        parameters.setPreviewSize(optimalSize.width, optimalSize.height);
    }
    else
    {
        Log.d(TAG, "------> version less than eclari 2.1");
        parameters.setPreviewSize(ApplicationInitiator.screenW,ApplicationInitiator.screenH); 
    }

    List<String> focusModes = parameters.getSupportedFocusModes();
    if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO))
    {
        parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
    }

    parameters.setJpegQuality(100);
    camera.setParameters(parameters);
    camera.startPreview();
}

解决方案

Well, on your text you talk about capturing a image, but I don't see anything in your code about taking a picture, Anyway, if you want to obtain a focused photo, what you have to do is register a AutoFocusCallback to take a picture when focus is obtained:

Camera.AutoFocusCallback mAutoFocusCallback = new Camera.AutoFocusCallback() {
    @Override
    public void onAutoFocus(boolean success, Camera camera) {
        camera.takePicture(null, null, mPictureCallbackRaw);
    }
};

Camera.PictureCallback mPictureCallbackRaw = new Camera.PictureCallback() {  
    public void onPictureTaken(byte[] data, Camera c) { 
        // (...)            
    }  
};

public void takeFocusedPicture() {
    mCamera.autoFocus(mAutoFocusCallback);
}

.

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