我正在从android应用程序保存的jpeg图像不完全清晰

我必须将android.media.Image保存为位图，并最终压缩为jpeg。保存的图像为半图像和半灰色。此外，图像也会旋转

# image=frame.acquireCameraImage（）

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位图位图=BitmapFactory.decodeByteArray（jpegData，0，jpegData.length，选项）

这是您的代码，请像这样更改它

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位图位图=BitmapFactory.decodeByteArray（jpegData，100，jpegData.length，选项）

在您的代码中，您将质量设置为0，因此出现问题，请将其更改为100，使图像保持原样。

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希望能有所帮助。

删除日志语句并添加适当的间距将使代码更易于他人阅读。但至少第三个arraycopy有一个错误的OffsetHanks，但结果是：10649/com.google.ar.core.examples.java.helloar E/HelloArActivity:Exception on the OpenGL线程java.lang.ArrayIndexOutOfBoundsException at android.graphics.BitmapFactory.decodeByteArray（BitmapFactory.java:626）

                    Log.i("Bitmap", "-60");
                    Image.Plane[] planes = image.getPlanes();
                    Log.i("Bitmap", "-6");
                    ByteBuffer buffer = planes[0].getBuffer();
                    ByteBuffer buffer1 = planes[1].getBuffer();
                    Log.i("Bitmap", "-15");
                    ByteBuffer buffer2 = planes[2].getBuffer();
                    Log.i("Bitmap", "-7");
                    int format = image.getFormat();
                    int width = image.getWidth();
                    int height = image.getHeight();
                    Log.i("Bitmap", "-20");
                    Rect cropRect = new Rect(0, 0, width, height);
                    Log.i("Bitmap", "-8");
                    byte[] arr = new byte[buffer.remaining()];
                    buffer.get(arr);
                    Log.i("Bitmap", "-9");
                    byte[] arr1 = new byte[buffer1.remaining()];
                    buffer1.get(arr1);
                    Log.i("Bitmap", "-10");
                    byte[] arr2 = new byte[buffer2.remaining()];
                    buffer2.get(arr2);
                    image.close();
                    Log.i("Bitmap", "-5");
                    byte[] c = new byte[arr.length + arr1.length + arr2.length];
                    Log.i("Bitmap", "-1");
                    System.arraycopy(arr, 0, c, 0, arr.length);
                    Log.i("Bitmap", "-2");
                    System.arraycopy(arr1, 0, c, arr.length, arr1.length);
                    Log.i("Bitmap", "-3");
                    System.arraycopy(arr2, 0, c, arr1.length, arr2.length);
                    Log.i("Bitmap", "0");
                    YuvImage yuvImage = new YuvImage(c,ImageFormat.NV21,width,height, null);
                    Log.i("Bitmap", "1");
                    ByteArrayOutputStream b = new ByteArrayOutputStream();
                    Log.i("Bitmap", "1");
                    yuvImage.compressToJpeg(cropRect, 90, b);
                    byte[] jpegData = b.toByteArray();
                    Log.i("Bitmap", "2");
                    BitmapFactory.Options options = new BitmapFactory.Options();
                    options.inPreferQualityOverSpeed=true;
                    // int scaleFactor;
                    //options.inSampleSize = scaleFactor;
                    Log.i("Bitmap", "3");
                    Bitmap bitmap = BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, options);
                    saveBitmap(bitmap);