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MagicWandRasterRegionData Class

Summary

Creates or updates the image region based on the color found at a specified point.

Syntax

C++

[DataContractAttribute(Namespace="http://Leadtools.Services.Raster.DataContracts/2009/01", Name="MagicWandRasterRegionData")] 
public class MagicWandRasterRegionData : RasterRegionData

  
<DataContractAttribute(Namespace="http://Leadtools.Services.Raster.DataContracts/2009/01", Name="MagicWandRasterRegionData")> 
Public Class MagicWandRasterRegionData  
   Inherits Leadtools.Services.Raster.Datacontracts.RasterRegionData

[DataContractAttribute(Namespace="http://Leadtools.Services.Raster.DataContracts/2009/01", Name="MagicWandRasterRegionData")] 
public ref class MagicWandRasterRegionData : public Leadtools.Services.Raster.Datacontracts.RasterRegionData

Remarks

For gray scale bitmaps:

The minimum channel tolerance value of lowerToleranceColor will be used to set the lower stopping point, and the value of upperToleranceColor will be used to set the upper stopping point. For example, if the value of the pixel at (x, y) is (125, 125, 125) and lowerToleranceColor is (20,30,15), the smallest value of the triplet (15) will be used to create the lower stopping point of (110,110,110). If upperToleranceColor is (10,25,20), the smallest value of that triplet (10) will be used to create the upper stopping point of (135,135,135).

To update an existing region, specify how the new region is to be combined with the existing one using the RasterRegionData.CombineMode parameter. For more information, refer to RasterRegionCombineMode.

Example

using Leadtools.Services; 
 
public void MagicWandRasterRegionDataExample() 
{ 
   EffectsProcessingServiceClient client = new EffectsProcessingServiceClient(); 
 
   RawBinaryData sourceBinaryData = new RawBinaryData(); 
   sourceBinaryData.Data = File.ReadAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp")); 
 
   RasterConvertOptions convertOptions = new RasterConvertOptions(); 
 
   convertOptions.Source = sourceBinaryData; 
   convertOptions.Destination = null; 
   convertOptions.Format = RasterImageFormat.Bmp; 
   convertOptions.FirstPage = 1; 
   convertOptions.LastPage = 1; 
   convertOptions.BitsPerPixel = 24; 
   convertOptions.QualityFactor = 2; 
 
   MagicWandRasterRegionData region = new MagicWandRasterRegionData(); 
   region.CombineMode = RasterRegionCombineMode.Set; 
 
   // Specify a pixel in the upper left of the displayed image 
   LeadPoint pt = new LeadPoint(); 
   pt.X = 100; 
   pt.Y = 100; 
 
   region.Location = pt; 
 
   // Create a magic wand region at this point 
   region.LowerToleranceColor = "#00141E96"; 
   region.UpperToleranceColor = "#000F1E0A"; 
 
   SharpenRequest request = new SharpenRequest(); 
 
   request.ConvertOptions = convertOptions; 
   request.RegionData = region; 
   request.Sharpness = 1000; 
 
   CommandResponse response = client.Sharpen(request); 
   if (response.Destination != null) 
   { 
      File.WriteAllBytes(Path.Combine(LEAD_VARS.ImagesDir, "MagicWandRasterRegionData.bmp"), (response.Destination as RawBinaryData).Data); 
   } 
 
   client.Close(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools.Services 
 
Public Sub MagicWandRasterRegionDataExample() 
   Dim client As EffectsProcessingServiceClient = New EffectsProcessingServiceClient() 
 
   Dim sourceBinaryData As RawBinaryData = New RawBinaryData() 
   sourceBinaryData.Data = File.ReadAllBytes(LeadtoolsExamples.Common.ImagesPath.Path & "image1.cmp") 
 
   Dim convertOptions As RasterConvertOptions = New RasterConvertOptions() 
 
   convertOptions.Source = sourceBinaryData 
   convertOptions.Destination = Nothing 
   convertOptions.Format = RasterImageFormat.Bmp 
   convertOptions.FirstPage = 1 
   convertOptions.LastPage = 1 
   convertOptions.BitsPerPixel = 24 
   convertOptions.QualityFactor = 2 
 
   Dim region As MagicWandRasterRegionData = New MagicWandRasterRegionData() 
   region.CombineMode = RasterRegionCombineMode.Set 
 
   ' Specify a pixel in the upper left of the displayed image 
   Dim pt As LeadPoint = New LeadPoint() 
   pt.X = 100 
   pt.Y = 100 
 
   region.Location = pt 
 
   ' Create a magic wand region at this point 
   region.LowerToleranceColor = "#00141E96" 
   region.UpperToleranceColor = "#000F1E0A" 
 
   Dim request As SharpenRequest = New SharpenRequest() 
 
   request.ConvertOptions = convertOptions 
   request.RegionData = region 
   request.Sharpness = 1000 
 
   Dim response As CommandResponse = client.Sharpen(request) 
   If Not response.Destination Is Nothing Then 
      File.WriteAllBytes(LeadtoolsExamples.Common.ImagesPath.Path & "MagicWandRasterRegionData.bmp", (TryCast(response.Destination, RawBinaryData)).Data) 
   End If 
 
   client.Close() 
End Sub

Requirements

Target Platforms

Reference

MagicWandRasterRegionData Members

Leadtools.Services.Raster.DataContracts Namespace

Help Version 19.0.2017.10.27

Leadtools.Services.Raster.DataContracts Assembly

Introduction

Getting Started

Namespaces

Leadtools.Services.Raster.DataContracts Namespace

Assemblies