Byte arrays

Question

I want to manipulate pixels using byte arrays. I use the memory stream function to write the byte array and then get the image from the stream. I know i can do this particular bit of code easily without the byte array but the whole point is that i need to be able to construct an image from an array of bytes for a project im doing. can anyone help me please!!!!!!!!!!!!!!! heres some code my problem is the 2nd to last line Image iq = Image.FromStream(st), it says invalid perameter used ; Bitmap q = new Bitmap ("c:\\desktop1.bmp"); byte [] pixel = new byte [q.Height*q.Width] ; for (int x=0; x