VB.Net Tutorial/2D Graphics/Tiff

Create Tiff file

<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Imaging public class MainClass

  public Shared Sub Main
       Dim bm As New Bitmap(256, 256)
       Dim gr As Graphics = Graphics.FromImage(bm)
       gr.Clear(Color.White)
       gr.DrawEllipse(Pens.Red, 0, 0, bm.Width - 1, bm.Height - 1)
       gr.DrawLine(Pens.Green, 0, 0, bm.Width - 1, bm.Height - 1)
       gr.DrawLine(Pens.Blue, bm.Width - 1, 0, 0, bm.Height - 1)
       bm.Save("test.jpg", ImageFormat.Tiff)
  End Sub

End class</source>

Tiff Encoder

<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Data Imports System.Drawing.Imaging public class MainClass

  public Shared Sub Main
       Dim imgCodecInfo As ImageCodecInfo = Nothing
       Dim encoder As Encoder = Nothing
       Dim encoderParam As EncoderParameter = Nothing
       Dim encoderParams As New EncoderParameters(3)
       Dim curBitmap As New Bitmap("yourfile.jpg")
       Dim mimeType As String = "image/tiff"
       Dim encoders() As ImageCodecInfo
       encoders = ImageCodecInfo.GetImageEncoders()
       Dim i As Integer
       While i < encoders.Length
           If encoders(i).MimeType = mimeType Then
               imgCodecInfo = encoders(i)
           End If
       End While " Set color depth to 24 pixels
       encoder = encoder.ColorDepth
       encoderParam = New EncoderParameter(encoder, CLng(EncoderValue.rupressionLZW))
       encoderParams.Param(0) = encoderParam
       encoder = encoder.rupression
       encoderParam = New EncoderParameter(encoder, CLng(EncoderValue.rupressionLZW))
       encoderParams.Param(1) = encoderParam
       encoder = encoder.Transformation
       encoderParam = New EncoderParameter(encoder, CLng(EncoderValue.TransformRotate180))
       encoderParams.Param(2) = encoderParam
       curBitmap.Save("newFile.tif", imgCodecInfo, encoderParams)
       curBitmap.Dispose()
  End Sub

End class</source>