?????? 類參考鏈接：http://api.apkbus.com/reference/android/graphics/YuvImage.html

1. 引入包： ??

import java.io.ByteArrayOutputStream; import android.hardware.Camera; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.YuvImage; import android.graphics.ImageFormat; import android.graphics.Rect; import android.graphics.Region;

?????? 安卓YUV_IMage包含四元組的YUV數據，contains YUV data and provides a method that compresses a region of the YUV data to a Jpeg，提供了一個向jpeg格式壓縮的方法。???????

公有構造函數

	YuvImage(byte[] yuv, int format, int width, int height, int[] strides)Construct an YuvImage.

公有方法

boolean	compressToJpeg(Rect rectangle, int quality, OutputStream stream)Compress a rectangle region in the YuvImage to a jpeg.
int	getHeight()
int[]	getStrides()
int	getWidth()
byte[]	getYuvData()
int	getYuvFormat()

釋義：????

Construct an YuvImage.

參數

yuvformatwidthheightstrides

The YUV data. In the case of more than one image plane, all the planes must be concatenated into a single byte array.

The YUV data format as defined in PixelFormat.

The width of the YuvImage.

The height of the YuvImage.

(Optional) Row bytes of each image plane. If yuv contains padding, the stride of each image must be provided. If strides is null, the method assumes no padding and derives the row bytes by format and width itself.

拋出

IllegalArgumentException

if format is not support; width or height <= 0; or yuv is null.

2.? 使用到的緩存類

參考鏈接：http://www.apihome.cn/api/java/ByteArrayOutputStream.html

參考鏈接： http://blog.chinaunix.net/uid-9789791-id-1997411.html

3. 轉換為矩陣數據使用的代碼

參考鏈接：http://eyehere.net/2011/android-camera-2/

//@Overridepublic void changeYUV(byte[] data, Bitmap bmp){final int Width = myCamera.getParameters().getPreviewSize().width;final int Height = myCamera.getParameters().getPreviewSize().height;YuvImage image = new YuvImage(data, ImageFormat.NV21,Width, Height, null);if(image!=null){ByteArrayOutputStream stream = new ByteArrayOutputStream();image.compressToJpeg(new Rect(0, 0, Width, Height), 80, stream);//Bitmap bmp = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());bmp = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());stream.close();}}

總結

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