Leadtools.ImageProcessing.Core Namespace : ZeroToNegativeCommand Class |
public class ZeroToNegativeCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand
'Declaration Public Class ZeroToNegativeCommand Inherits Leadtools.ImageProcessing.RasterCommand Implements Leadtools.ImageProcessing.IRasterCommand
'Usage Dim instance As ZeroToNegativeCommand
public sealed class ZeroToNegativeCommand : Leadtools.ImageProcessing.IRasterCommand
function Leadtools.ImageProcessing.Core.ZeroToNegativeCommand()
public ref class ZeroToNegativeCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand
In Silverlight and Windows Phone versions of LEADTOOLS, this image processing command will fail if the image data for the RasterImage object is stored internally using a Silverlight WriteableBitmap object. For more information, refer to Image Processing Command Limitations in Silverlight.
Public Sub ZeroToNegativeCommandExample() Dim codecs As New RasterCodecs() codecs.ThrowExceptionsOnInvalidImages = True Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\Beauty16.jpg")) ' Prepare the command ' Convert the image to unsigned image by shifting the negative values to become positive. Dim MinToZCommand As MinimumToZeroCommand = New MinimumToZeroCommand MinToZCommand.Run(leadImage) ' Apply multiscale enhancement Dim MultiScaleCommand As MultiscaleEnhancementCommand = New MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement) ' Convert the image back to signed by shifting the same amount in the negative side. Dim command As ZeroToNegativeCommand = New ZeroToNegativeCommand command.MinimumInput = -32767 command.MaximumInput = 32766 command.MinimumOutput = 0 command.MaximumOutput = 65535 command.ShiftAmount = MinToZCommand.ShiftAmount command.Run(leadImage) End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class
public void ZeroToNegativeCommandExample() { // Load an image RasterCodecs codecs = new RasterCodecs(); codecs.ThrowExceptionsOnInvalidImages = true; RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Beauty16.jpg")); // Prepare the command // Convert the image to unsigned image by shifting the negative values to become positive. MinimumToZeroCommand MinToZCommand = new MinimumToZeroCommand(); MinToZCommand.Run(image); // Apply multiscale enhancement MultiscaleEnhancementCommand MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement); // Convert the image back to signed by shifting the same amount in the negative side. ZeroToNegativeCommand command = new ZeroToNegativeCommand(); command.MinimumInput = -32767; command.MaximumInput = 32766; command.MinimumOutput = 0; command.MaximumOutput = 65535; command.ShiftAmount = MinToZCommand.ShiftAmount; command.Run(image); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; }
function ZeroToNegativeCommandExample() { var codecs = new Leadtools.Codecs.RasterCodecs(); codecs.throwExceptionsOnInvalidImages = true; // Load the image var srcFileName = "Assets\\Beauty16.jpg"; var processedImage; return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) { return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile)); }).then(function (image) { // Prepare the command with (Leadtools.ImageProcessing.Core) { // Convert the image to unsigned image by shifting the negative values to become positive. var MinToZCommand = new MinimumToZeroCommand(); MinToZCommand.run(image); // Apply multiscale enhancement var MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.gaussian, MultiscaleEnhancementCommandFlags.edgeEnhancement); // Convert the image back to signed by shifting the same amount in the negative side. var command = new ZeroToNegativeCommand(); command.minimumInput = -32767; command.maximumInput = 32766; command.minimumOutput = 0; command.maximumOutput = 65535; command.shiftAmount = MinToZCommand.shiftAmount; command.run(image); } }); }
[TestMethod] public async Task ZeroToNegativeCommandExample() { // Load an image RasterCodecs codecs = new RasterCodecs(); codecs.ThrowExceptionsOnInvalidImages = true; // Load the image string srcFileName = @"Assets\Beauty16.jpg"; StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName); RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile)); // Prepare the command // Convert the image to unsigned image by shifting the negative values to become positive. MinimumToZeroCommand MinToZCommand = new MinimumToZeroCommand(); MinToZCommand.Run(image); // Apply multiscale enhancement MultiscaleEnhancementCommand MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement); // Convert the image back to signed by shifting the same amount in the negative side. ZeroToNegativeCommand command = new ZeroToNegativeCommand(); command.MinimumInput = -32767; command.MaximumInput = 32766; command.MinimumOutput = 0; command.MaximumOutput = 65535; command.ShiftAmount = MinToZCommand.ShiftAmount; command.Run(image); }
public void ZeroToNegativeCommandExample(RasterImage image, Stream outStream) { // Prepare the command // Convert the image to unsigned image by shifting the negative values to become positive. MinimumToZeroCommand MinToZCommand = new MinimumToZeroCommand(); MinToZCommand.Run(image); // Apply multiscale enhancement MultiscaleEnhancementCommand MultiScaleCommand = new MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement); // Convert the image back to signed by shifting the same amount in the negative side. ZeroToNegativeCommand command = new ZeroToNegativeCommand(); command.MinimumInput = -32767; command.MaximumInput = 32766; command.MinimumOutput = 0; command.MaximumOutput = 65535; command.ShiftAmount = MinToZCommand.ShiftAmount; command.Run(image); // Save result image RasterCodecs codecs = new RasterCodecs(); codecs.Save(image, outStream, RasterImageFormat.DicomGray, image.BitsPerPixel); image.Dispose(); }
Public Sub ZeroToNegativeCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
' Convert the image to unsigned image by shifting the negative values to become positive.
Dim MinToZCommand As MinimumToZeroCommand = New MinimumToZeroCommand()
MinToZCommand.Run(image)
' Apply multiscale enhancement
Dim MultiScaleCommand As MultiscaleEnhancementCommand = _
New MultiscaleEnhancementCommand(2000, 4, -1, 0, 0, MultiscaleEnhancementCommandType.Gaussian, MultiscaleEnhancementCommandFlags.EdgeEnhancement)
' Convert the image back to signed by shifting the same amount in the negative side.
Dim command As ZeroToNegativeCommand = New ZeroToNegativeCommand()
command.MinimumInput = -32767
command.MaximumInput = 32766
command.MinimumOutput = 0
command.MaximumOutput = 65535
command.ShiftAmount = MinToZCommand.ShiftAmount
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.DicomGray, image.BitsPerPixel)
image.Dispose()
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2