Initializes a new AddNoiseCommand class object with explicit parameters.
public AddNoiseCommand(
int range,
Leadtools.Imageprocessing.RasterColorChannel channel
)
Public Function New( _
ByVal range As Integer, _
ByVal channel As Leadtools.Imageprocessing.RasterColorChannel _
)
public AddNoiseCommand(
int range,
Leadtools.Imageprocessing.RasterColorChannel channel
)
function AddNoiseCommand(
range ,
channel
)
public:
AddNoiseCommand(
int range,
Leadtools.Imageprocessing.RasterColorChannel channel
)
range
Percentage of coverage, expressed in tenths of a percent. Valid values are 0 to 1000.
channel
value that represents the color plane to which to add the noise.
In order to speed up widely used image processing filters in LEADTOOLS, the grayscale value (master channel) of a colored image is calculated using the following formulas:
#define CalcGrayValue(r, g, b) ((L_UCHAR)(((L_UCHAR) (((2 * (L_UINT) (r)) + (5 * (L_UINT) (g)) + (L_UINT) (b) + 4) / 8))))
#define CalcGrayValue16(r, g, b) ((L_UINT16) (((2 * (L_UINT32) (r)) + (5 * (L_UINT32) (g)) + (L_UINT32) (b) + 4) / 8))
#define CalcGrayValue32(r, g, b) ((L_UINT32) (((2 * (L_UINT32) (r)) + (5 * (L_UINT32) (g)) + (L_UINT32) (b) + 4) / 8))
Run the AddNoiseCommand to add red noise to the image(Default constructor example).
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Effects
Public Sub AddNoiseConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample2.cmp"))
' Prepare the command
Dim command As AddNoiseCommand = New AddNoiseCommand(250, RasterColorChannel.Red)
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
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Effects;
public void AddNoiseConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample2.cmp"));
// Prepare the command
AddNoiseCommand command = new AddNoiseCommand(250, RasterColorChannel.Red);
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";
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing;
public async Task AddNoiseConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
// Load the image
string srcFileName = @"Assets\Image1.cmp";
StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));
// Prepare the command
AddNoiseCommand command = new AddNoiseCommand(250, RasterColorChannel.Red);
command.Run(image);
//Save as BMP
string destFileName = @"result.bmp";
StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Effects;
using Leadtools.Examples;
public void AddNoiseConstructorExample(RasterImage image, Stream outStream)
{
// Prepare the command
AddNoiseCommand command = new AddNoiseCommand(250, RasterColorChannel.Red);
command.Run(image);
// Save result image
RasterCodecs codecs = new RasterCodecs();
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Effects
Public Sub AddNoiseConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
Dim command As AddNoiseCommand = New AddNoiseCommand(250, RasterColorChannel.Red)
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
image.Dispose()
End Sub
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