Combines image data from the source image (the slave) and the destination image (the master), using a perspective warp.
public class CombineWarpCommand : RasterCommand
Public Class CombineWarpCommand
Inherits RasterCommand
@interface LTCombineWarpCommand : LTRasterCommand
public ref class CombineWarpCommand : public RasterCommand
You can warp the entire source image, or a portion of the source image. To warp a portion of the source image, set SourceRectangle accordingly. To warp the entire source image, set the following:
CombineWarp.Command.SourceRectangle = new LeadRect(0, 0, RasterImage.Width, RasterImage.Height);
The warp area in the destination image is specified in SetDestinationPoints. The polygon specified in SetDestinationPoints must:
If either of these conditions is false, this class will throw an exception.
The ordering of the points in SetDestinationPoints can affect the resulting warp. For example, if the source image is the following:
then ordering the points in SetDestinationPoints as shown below results in the following warp:
while ordering the points in SetDestinationPoints as shown below, results in the following warp:
The CombineWarpCommand works by combining the image in the DestinationImage property with the image passed to the Run method. The DestinationImage will then hold the result of the combine operation..
For more information, refer to Introduction to Image Processing With LEADTOOLS.
This command does not support signed data images.
This example will warp combines two images.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using LeadtoolsExamples.Common;
public void CombineWarpCommandExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName1 = Path.Combine(ImagesPath.Path, "Image1.cmp");
string srcFileName2 = Path.Combine(ImagesPath.Path, "Image2.cmp");
string destFileName = Path.Combine(ImagesPath.Path, "CombineWarpCommand.bmp");
// Load the source images from disk
RasterImage parentImage = codecs.Load(srcFileName1);
RasterImage childImage = codecs.Load(srcFileName2);
// Combine them
CombineWarpCommand command = new CombineWarpCommand();
LeadPoint[] destPoints =
{
new LeadPoint(100,100),
new LeadPoint(200,75),
new LeadPoint(200,250),
new LeadPoint(100,200)
};
command.DestinationImage = parentImage;
command.SetDestinationPoints(destPoints);
command.SourceRectangle = new LeadRect(0, 0, childImage.Width, childImage.Height);
command.Flags = CombineWarpCommandFlags.Bilinear;
command.Run(childImage);
// Save it to disk
codecs.Save(parentImage, destFileName, RasterImageFormat.Bmp, 24);
// Clean Up
parentImage.Dispose();
childImage.Dispose();
codecs.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Public Sub CombineWarpCommandExample()
Dim codecs As RasterCodecs = New RasterCodecs()
Dim srcFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
Dim srcFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image2.cmp")
Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "CombineWarpCommand.bmp")
' Load the source images from disk
Dim parentImage As RasterImage = codecs.Load(srcFileName1)
Dim childImage As RasterImage = codecs.Load(srcFileName2)
' Combine them
Dim command As CombineWarpCommand = New CombineWarpCommand()
Dim destPoints As LeadPoint() = {New LeadPoint(100, 100), New LeadPoint(200, 75), New LeadPoint(200, 250), New LeadPoint(100, 200)}
command.DestinationImage = parentImage
command.SetDestinationPoints(destPoints)
command.SourceRectangle = New LeadRect(0, 0, childImage.Width, childImage.Height)
command.Flags = CombineWarpCommandFlags.Bilinear
command.Run(childImage)
' Save it to disk
codecs.Save(parentImage, destFileName, RasterImageFormat.Bmp, 24)
' Clean Up
parentImage.Dispose()
childImage.Dispose()
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
c#[Silverlight C# Example]
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Examples;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Media;
//public void CombineWarpCommandExample(RasterImage parentImage, RasterImage childImage, Stream destStream)
//{
// RasterCodecs codecs = new RasterCodecs();
// // Combine them
// CombineWarpCommand command = new CombineWarpCommand();
// Point[] destPoints =
// {
// new Point(100,100),
// new Point(200,75),
// new Point(200,250),
// new Point(100,200)
// };
// command.DestinationImage = parentImage;
// command.SetDestinationPoints(destPoints);
// command.SourceRectangle = new LeadRect(0, 0, childImage.Width, childImage.Height);
// command.Flags = CombineWarpCommandFlags.Bilinear;
// command.Run(childImage);
// // Save it to disk
// codecs.Save(parentImage, destStream, RasterImageFormat.Bmp, 24);
// // Clean Up
// parentImage.Dispose();
// childImage.Dispose();
//}
vb[Silverlight VB Example]
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Media
'public void CombineWarpCommandExample(RasterImage parentImage, RasterImage childImage, Stream destStream)
'{
' RasterCodecs codecs = new RasterCodecs();
' // Combine them
' CombineWarpCommand command = new CombineWarpCommand();
' Point[] destPoints =
' {
' new Point(100,100),
' new Point(200,75),
' new Point(200,250),
' new Point(100,200)
' };
' command.DestinationImage = parentImage;
' command.SetDestinationPoints(destPoints);
' command.SourceRectangle = new LeadRect(0, 0, childImage.Width, childImage.Height);
' command.Flags = CombineWarpCommandFlags.Bilinear;
' command.Run(childImage);
' // Save it to disk
' codecs.Save(parentImage, destStream, RasterImageFormat.Bmp, 24);
' // Clean Up
' parentImage.Dispose();
' childImage.Dispose();
'}
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