In This Topic
Changes the image resolution with appropriate resizing. This command changes internal image size (in pixels), but not real image size (in inches or cm).
Object Model
Syntax
Remarks
This command should be used for decreasing resolution of the image. Also it can be used for increasing resolution of the image but in this case quality of image will be reduced.
Example
This C#/VB.NET code shows how to load an image from disk, resample the image and save the result to a new image file.
Class ResampleCommandExample
Public Sub ProcessImage()
' [ do not forget to set your image file path here! ]
' create an image collection
Using images As New Vintasoft.Imaging.ImageCollection()
' add image to the image collection
images.Add("Flower.jpg")
Try
' create the image processing command
Dim command As New Vintasoft.Imaging.ImageProcessing.ResampleCommand(144, 144)
' subscribe to progress event of image processing command
AddHandler command.Progress, New System.EventHandler(Of Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs)(AddressOf command_Progress)
Try
' for each image in image collection
For Each image As Vintasoft.Imaging.VintasoftImage In images
' apply the image processing command to the image
command.ExecuteInPlace(image)
Next
Catch ex As Vintasoft.Imaging.ImageProcessing.ImageProcessingException
' show error message
System.Windows.Forms.MessageBox.Show(ex.Message)
Return
End Try
' save the processed image collection to a new TIFF file
images.SaveSync("processed-image.tif")
Finally
images.ClearAndDisposeItems()
End Try
End Using
End Sub
Private Sub command_Progress(sender As Object, e As Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs)
' update progress info using e.Progress property
' ...
' cancel execution of command using e.Cancel property if necessary
' ...
End Sub
End Class
class ResampleCommandExample
{
public void ProcessImage()
{
// [ do not forget to set your image file path here! ]
// create an image collection
using (Vintasoft.Imaging.ImageCollection images = new Vintasoft.Imaging.ImageCollection())
{
// add image to the image collection
images.Add("Flower.jpg");
try
{
// create the image processing command
Vintasoft.Imaging.ImageProcessing.ResampleCommand command =
new Vintasoft.Imaging.ImageProcessing.ResampleCommand(144, 144);
// subscribe to progress event of image processing command
command.Progress +=
new System.EventHandler<Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs>(command_Progress);
try
{
// for each image in image collection
foreach (Vintasoft.Imaging.VintasoftImage image in images)
{
// apply the image processing command to the image
command.ExecuteInPlace(image);
}
}
catch (Vintasoft.Imaging.ImageProcessing.ImageProcessingException ex)
{
// show error message
System.Windows.Forms.MessageBox.Show(ex.Message);
return;
}
// save the processed image collection to a new TIFF file
images.SaveSync("processed-image.tif");
}
finally
{
images.ClearAndDisposeItems();
}
}
}
void command_Progress(object sender, Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs e)
{
// update progress info using e.Progress property
// ...
// cancel execution of command using e.Cancel property if necessary
// ...
}
}
Inheritance Hierarchy
Requirements
Target Platforms: .NET9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5
See Also