Initializes a new HistogramCommand class object with explicit parameters.
Supported in Silverlight, Windows Phone 7
Syntax
Parameters
- channel
- Flags that indicate the channel for which to get the histogram and the bits to use in calculating the histogram.
Example
Run the Leadtools.ImageProcessing.Color.HistogramCommand on an image to get the red-channel histogram.
Visual Basic | Copy Code |
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Public Sub HistogramConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))
' Prepare the command
Dim command As HistogramCommand = New HistogramCommand(HistogramCommandFlags.Red Or HistogramCommandFlags.AllBits)
command.Run(leadImage)
codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)
'This is where the histogram information strored
Dim histogramValues() As Integer = command.Histogram
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class |
C# | Copy Code |
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public void HistogramConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));
// Prepare the command
HistogramCommand command = new HistogramCommand(HistogramCommandFlags.Red | HistogramCommandFlags.AllBits);
command.Run(image);
codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);
//This is where the histogram information strored
int [] histogramValues = command.Histogram;
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
} |
SilverlightCSharp | Copy Code |
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public void HistogramConstructorExample(RasterImage image, Stream outStream)
{
// Prepare the command
HistogramCommand command = new HistogramCommand(HistogramCommandFlags.Red | HistogramCommandFlags.AllBits);
command.Run(image);
// Save result image
RasterCodecs codecs = new RasterCodecs();
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
image.Dispose();
//This is where the histogram information is stored
int [] histogramValues = command.Histogram;
} |
SilverlightVB | Copy Code |
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Public Sub HistogramConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
Dim command As HistogramCommand = New HistogramCommand(HistogramCommandFlags.Red Or HistogramCommandFlags.AllBits)
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
image.Dispose()
'This is where the histogram information is stored
Dim histogramValues As Integer() = command.Histogram
End Sub |
Requirements
Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)
See Also