谁能告诉我如何将图像（个.jpg，.gif .BMP）转换成字节数组？

Can anyone please tell me how an image(.jpg,.gif,.bmp) is converted into a byte array ?

推荐答案

我假定你想要的是像素值。假设位图是 System.Windows.Media.Imaging.BitmapSource ：

I've assumed what you want is the pixel values. Assuming bitmap is a System.Windows.Media.Imaging.BitmapSource:

int stride = bitmap.PixelWidth * ((bitmap.Format.BitsPerPixel + 7) / 8);
byte[] bmpPixels = new byte[bitmap.PixelHeight * stride];
bitmap.CopyPixels(bmpPixels, stride, 0);

请注意，该步幅是所需的像素DDATA的各行的字节数。提供一些更多的解释here.

Note that the 'stride' is the number of bytes required for each row of pixel ddata. Some more explanation available here.