Convert image to binary?

Question

I have an image (in .png format), and I want this picture to convert to binary.

How can this be done using C#?

Answer 1

System.Drawing.Image image = System.Drawing.Image.FromFile("filename");
byte[] buffer;
MemoryStream stream = new MemoryStream();
image.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);

buffer = stream.ToArray(); // converted to byte array
stream = new MemoryStream();
stream.Read(buffer, 0, buffer.Length);
stream.Seek(0, SeekOrigin.Begin);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);

Answer 2

byte[] b = File.ReadAllBytes(file);   

File.ReadAllBytes Method

Opens a binary file, reads the contents of the file into a byte array, and then closes the file.

Answer 3

public static byte[] ImageToBinary(string imagePath)
    {
        FileStream fS = new FileStream(imagePath, FileMode.Open, FileAccess.Read);
        byte[] b = new byte[fS.Length];
        fS.Read(b, 0, (int)fS.Length);
        fS.Close();
        return b;
    }

just use above code i think your problem will be solved

Answer 4

using System.IO;

FileStream fs=new FileStream(Path, FileMode.Open, FileAccess.Read); //Path is image location 
Byte[] bindata= new byte[Convert.ToInt32(fs.Length)];
fs.Read(bindata, 0, Convert.ToInt32(fs.Length));

Answer 5

Since you have a file use:-

 Response.ContentType = "image/png";
 Response.WriteFile(physicalPathOfPngFile);

Answer 6

You could do:

    MemoryStream stream = new MemoryStream();
    image.Save(stream, ImageFormat.Png);
    BinaryReader streamreader = new BinaryReader(stream);

    byte[] data = streamreader.ReadBytes(stream.Length);

data would then contain the contents of the image.