public ChangeContrastCommand(
int contrast
)
Public Function New( _
ByVal contrast As Integer _
)
- (instancetype)initWithContrast:(NSInteger)contrast
public ChangeContrastCommand(int contrast)
public:
ChangeContrastCommand(
int contrast
)
contrast
Amount of contrast change. Valid values are -1000 to +1000.
Run the ChangeContrastCommand on an image and increase its contrast.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
public void ChangeContrastConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Image1.jpg"));
// Prepare the command
ChangeContrastCommand command = new ChangeContrastCommand(250);
// Increase the contrast by 25 percent of the possible range.
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.Color
Public Sub ChangeContrastConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\Image1.jpg"))
' Prepare the command
Dim command As ChangeContrastCommand = New ChangeContrastCommand(250)
'Increase the contrast by 25 percent of the possible range.
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
c#[Silverlight C# Example]
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Examples;
public void ChangeContrastConstructorExample(RasterImage image, Stream outStream)
{
// Prepare the command
ChangeContrastCommand command = new ChangeContrastCommand(250);
// Increase the contrast by 25 percent of the possible range.
command.Run(image);
// Save result image
RasterCodecs codecs = new RasterCodecs();
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
image.Dispose();
}
vb[Silverlight VB Example]
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color
Public Sub ChangeContrastConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
Dim command As ChangeContrastCommand = New ChangeContrastCommand(250)
' Increase the contrast by 25 percent of the possible range.
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
image.Dispose()
End Sub
Help Collections
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