c# - 从我的 LockBits 中获取每种颜色的像素

Question

我有一个程序可以获取图像中的每个像素并将它们输出到文本文档中。问题是它只是将它们作为数字扔在那里，而且看起来相当难看。ei " 37 37 37 36" 我希望像 GetPixel 函数一样显示它们。ei [A=255, R=4, G=255, B=131]。我目前的代码是...

Bitmap bmp = new Bitmap("Space big.jpg");

Rectangle bmpRec = new Rectangle(0, 0, bmp.Width, bmp.Height); //Creates Rectangle for holding picture

BitmapData bmpData = bmp.LockBits(bmpRec, ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb); //Gets the Bitmap data

IntPtr Pointer = bmpData.Scan0; //Sets pointer

int DataBytes = Math.Abs(bmpData.Stride) * bmp.Height; //Gets array size

byte[] rgbValues = new byte[DataBytes]; //Creates array

Marshal.Copy(Pointer, rgbValues, 0, DataBytes); //Copies of out memory

bmp.UnlockBits(bmpData);

StringBuilder Pix = new StringBuilder(" ");

Stopwatch Timer = new Stopwatch();

pictureBox1.Image = bmp;

        StringBuilder EachPixel = new StringBuilder("");

        Timer.Start();
        for (int i = 0; i < bmpData.Width; i++)
        {
            for (int j = 0; j < bmpData.Height; j++)
            {
                // compute the proper offset into the array for these co-ords
                var pixel = rgbValues[i + j * Math.Abs(bmpData.Stride)];
                Pix.Append(" ");
                Pix.Append(pixel);
            }
        }