通过这种方式获得字节数组-

BufferedImage image = new Robot().createScreenCapture(new Rectangle(screenDimension));
byte[] array = ((DataBufferByte)getGraycaleImage(image).getRaster().getDataBuffer()).getData();
//  Method getGraycaleImage returns a grayscaled BufferedImage, it works fine

现在我如何从字节数组重建此灰度图像？

我对ARGB，RGB或灰度图像了解不多。我试过了-

private Image getGrayscaleImageFromArray(byte[] pixels, int width, int height)
{
    int[] pixels2=getIntArrayFromByteArray(pixels);
    MemoryImageSource mis = new MemoryImageSource(width, height, pixels2, 0, width);
    Toolkit tk = Toolkit.getDefaultToolkit();
    return tk.createImage(mis);
}

private int[] getIntArrayFromByteArray(byte[] pixelsByte)
{
    int[] pixelsInt=new int[pixelsByte.length];
    int i;
    for(i=0;i<pixelsByte.length;i++)
        pixelsInt[i]=pixelsByte[i]<<24 | pixelsByte[i]<<16
| pixelsByte[i]<<8 | pixelsByte[i];  // I think this line creates the problem
    return pixelsInt;
}

当我绘制此图像时，它不是黑白的，而是橙色和灰色的东西。