CODEWITHSUNDEEP
c#
Martijn
Martijn

Reputation: 24789

Convert image to binary?

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

How can this be done using C#?

Upvotes: 11

Views: 103884

Answers (8)

Gayan Chinthaka Dharmarathna
Gayan Chinthaka Dharmarathna

Reputation: 411

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));

Upvotes: 0

omid.n
omid.n

Reputation: 491

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);

Upvotes: 0

user2609915
user2609915

Reputation: 

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

Upvotes: 0

Raúl Roa
Raúl Roa

Reputation: 12386

First, convert the image into a byte array using ImageConverter class. Then specify the mime type of your png image, and voila!

Here's an example:

TypeConverter tc = TypeDescriptor.GetConverter(typeof(Byte[]));
Response.ContentType = "image/png";
Response.BinaryWrite((Byte[])tc.ConvertTo(img,tc));

Upvotes: 0

Alistair Evans
Alistair Evans

Reputation: 36473

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.

Upvotes: 3

AnthonyWJones
AnthonyWJones

Reputation: 189437

Since you have a file use:-

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

Upvotes: 6

Andrew Hare
Andrew Hare

Reputation: 351466

Try this:

Byte[] result 
    = (Byte[])new ImageConverter().ConvertTo(yourImage, typeof(Byte[]));

Upvotes: 11

Svetlozar Angelov
Svetlozar Angelov

Reputation: 21660

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.

Upvotes: 26

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