Shears the image by the wave drawn using the amplitudes array. This command is available in the Imaging Pro and above toolkits.
public class FreeHandShearCommand : RasterCommand
Public Class FreeHandShearCommand
Inherits RasterCommand
public ref class FreeHandShearCommand : public RasterCommand
For more information, refer to Applying Artistic Effects.
Run the FreeHandShearCommand on an image.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.SpecialEffects;
using Leadtools.ImageProcessing.Effects;
public void FreeHandShearCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp"));
// Prepare the command
LeadPoint[] UserPoint = new LeadPoint[4];
int[] Amplitudes = new int[13];
FreeHandShearCommand command = new FreeHandShearCommand();
// Fill apUserPoint array with points that define a triangular wave
UserPoint[0].X = 0;
UserPoint[0].Y = 0;
UserPoint[1].X = 3;
UserPoint[1].Y = 10;
UserPoint[2].X = 9;
UserPoint[2].Y = -10;
UserPoint[3].X = 12;
UserPoint[3].Y = 0;
// Draw a triangular wave according to UserPoint points and store the Amplitudes values in the Amplitudes array.
EffectsUtilities.GetCurvePoints(Amplitudes, UserPoint, CurvePointsType.Linear);
// Normalize Amplitudes array (maximum value in Amplitudes is 1000 and lower is -1000).
int Maximum, i;
for (Maximum = 0, i = 0; i < 13; i++)
{
if (Maximum < Amplitudes[i])
Maximum = Amplitudes[i];
}
if (Maximum != 0)
{
for (i = 0; i < 13; i++)
{
Amplitudes[i] = (1000 * Amplitudes[i] / Math.Abs(Maximum));
}
}
command.Amplitudes = Amplitudes;
command.Scale = 100;
command.FillColor = new RasterColor(0, 0, 0);
command.Flags = FreeHandShearCommandFlags.Horizontal | FreeHandShearCommandFlags.Repeat;
// Apply the shear wave horizontally.
command.Run(image);
codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.SpecialEffects
Imports Leadtools.ImageProcessing.Effects
Public Sub FreeHandShearCommandExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp"))
' Prepare the command
Dim UserPoint() As LeadPoint
ReDim UserPoint(3)
Dim Amplitudes() As Integer
ReDim Amplitudes(12)
Dim command As FreeHandShearCommand = New FreeHandShearCommand
' Fill apUserPoint array with points that define a triangular wave
UserPoint(0).X = 0
UserPoint(0).Y = 0
UserPoint(1).X = 3
UserPoint(1).Y = 10
UserPoint(2).X = 9
UserPoint(2).Y = -10
UserPoint(3).X = 12
UserPoint(3).Y = 0
' Draw a triangular wave according to UserPoint points and store the Amplitudes values in the Amplitudes array.
EffectsUtilities.GetCurvePoints(Amplitudes, UserPoint, CurvePointsType.Linear)
' Normalize Amplitudes array (maximum value in Amplitudes is 1000 and lower is -1000).
Dim Maximum As Integer
Dim i As Integer
Maximum = 0
For i = 0 To 12
If (Maximum < Amplitudes(i)) Then
Maximum = Amplitudes(i)
End If
Next
If (Maximum <> 0) Then
For i = 0 To 12
Amplitudes(i) = (1000 * Amplitudes(i) \ Math.Abs(Maximum))
Next
End If
command.Amplitudes = Amplitudes
command.Scale = 100
command.FillColor = New RasterColor(0, 0, 0)
command.Flags = FreeHandShearCommandFlags.Horizontal Or FreeHandShearCommandFlags.Repeat
' Apply the shear wave horizontally.
command.Run(leadImage)
codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
Leadtools.ImageProcessing.SpecialEffects Namespace
Leadtools.ImageProcessing.Effects.AddNoiseCommand
Leadtools.ImageProcessing.Effects.EmbossCommand
Leadtools.ImageProcessing.Effects.MosaicCommand
Leadtools.ImageProcessing.Effects.MotionBlurCommand
Leadtools.ImageProcessing.Effects.OilifyCommand
Leadtools.ImageProcessing.Color.PosterizeCommand
Leadtools.ImageProcessing.Color.RemoveRedEyeCommand
Leadtools.ImageProcessing.Color.SolarizeCommand
Leadtools.ImageProcessing.Effects.CubismCommand
Leadtools.ImageProcessing.Color.SampleTargetCommand
Leadtools.ImageProcessing.Effects.DisplacementCommand
Leadtools.ImageProcessing.Core.HalfTonePatternCommand
Leadtools.ImageProcessing.Effects.MaskConvolutionCommand
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