How to convert image object to byte array vb.net

Stevan

Member

310 Points

20 Posts

I'm working on vb.net. I wan to convert image object to byte array. Can anybody suggest how I can convert an image to a byte array and vice versa?
If anybody has some code samples to help me out, that would be great.

.net vb.net

Views: 10814
Total Answered: 2
Total Marked As Answer: 0
Posted On: 16-Mar-2015 14:45

Share:

Answers

NiceOne...

Editor

1382 Points

14 Posts

Use following code to convert image object to byte array in vb.net

Public Function ConvertImageFiletoBytes(ByVal ImageFilePath As String) As Byte()

Dim _tempByte() As Byte = Nothing

If String.IsNullOrEmpty(ImageFilePath) = True Then

Throw New ArgumentNullException("Image File Name Cannot be Null or Empty", "ImageFilePath")

Return Nothing

End If

Try

Dim _fileInfo As New IO.FileInfo(ImageFilePath)

Dim _NumBytes As Long = _fileInfo.Length

Dim _FStream As New IO.FileStream(ImageFilePath, IO.FileMode.Open, IO.FileAccess.Read)

Dim _BinaryReader As New IO.BinaryReader(_FStream)

_tempByte = _BinaryReader.ReadBytes(Convert.ToInt32(_NumBytes))

_fileInfo = Nothing

_NumBytes = 0

_FStream.Close()

_FStream.Dispose()

_BinaryReader.Close()

Return _tempByte

Catch ex As Exception

Return Nothing

End Try

End Function

Posted On: 16-Mar-2015 15:49

Rashmi

Member

820 Points

17 Posts

You can use following:

'Read Image File into Image object.
Dim img As Image = Image.FromFile("C:\image2.jpg")
 
'ImageConverter Class convert Image object to Byte array.
Dim bytes As Byte() = CType((New ImageConverter()).ConvertTo(img, GetType(Byte())), Byte())

Posted On: 23-Feb-2019 03:16