LEADTOOLS画像処理(Leadtools.ImageProcessing.Colorアセンブリ)

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ColorLevelCommandクラス








メンバ 
imageにカラーレベル調整を適用します。それは、imageシャドウ、中間色とハイライトを変更します。この関数は、バーコードの認識結果を改善するために画像を事前処理する場合に便利です。
オブジェクトモデル
構文
'Declaration
 
Public Class ColorLevelCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As ColorLevelCommand
public sealed class ColorLevelCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTColorLevelCommand : LTRasterCommand
public class ColorLevelCommand extends RasterCommand
function Leadtools.ImageProcessing.Color.ColorLevelCommand()
解説

詳細については、「明度とコントラストの変更」を参照してください。詳細については、「色の補正」を参照してください。
サンプル

imageの上でColorLevelCommandを実行します。

Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color

   
Public Sub ColorLevelCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP"))

   ' Prepare the command
   Dim blue As ColorLevelCommandData = New ColorLevelCommandData
   Dim master As ColorLevelCommandData = New ColorLevelCommandData
   ' Specify Image levels
   blue.MinimumInput = 20
   blue.MaximumInput = 200
   blue.MinimumOutput = 0
   blue.MaximumOutput = 255
   blue.Gamma = 100
   ' Master will cause the image to be Inversed
   master.MinimumInput = 0
   master.MaximumInput = 255
   master.MinimumOutput = 255
   master.MaximumOutput = 0
   master.Gamma = 100
   ' Level the Blue and Master channels
   Dim command As ColorLevelCommand = New ColorLevelCommand(master, Nothing, Nothing, blue, ColorLevelCommandFlags.Blue Or ColorLevelCommandFlags.Master)
   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.Color;

      
public void ColorLevelCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE1.CMP"));

   // Prepare the command
   ColorLevelCommandData blue    = new ColorLevelCommandData();
   ColorLevelCommandData master  = new ColorLevelCommandData();
   //Specify Image levels
   blue.MinimumInput    = 20;
   blue.MaximumInput    = 200;
   blue.MinimumOutput   = 0;
   blue.MaximumOutput   = 255;
   blue.Gamma           = 100;
   // Master will cause the image to be Inversed
   master.MinimumInput  = 0;
   master.MaximumInput  = 255;
   master.MinimumOutput = 255;
   master.MaximumOutput = 0;
   master.Gamma         = 100;
   // Level the Blue and Master channels
   ColorLevelCommand command = new ColorLevelCommand(master, null, null, blue, ColorLevelCommandFlags.Blue | ColorLevelCommandFlags.Master);
   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.Color;

      
public async Task ColorLevelCommandExample()
{
   // 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
   ColorLevelCommandData blue    = new ColorLevelCommandData();
   ColorLevelCommandData master  = new ColorLevelCommandData();
   //Specify Image levels
   blue.MinimumInput    = 20;
   blue.MaximumInput    = 200;
   blue.MinimumOutput   = 0;
   blue.MaximumOutput   = 255;
   blue.Gamma           = 100;
   // Master will cause the image to be Inversed
   master.MinimumInput  = 0;
   master.MaximumInput  = 255;
   master.MinimumOutput = 255;
   master.MaximumOutput = 0;
   master.Gamma         = 100;
   // Level the Blue and Master channels
   ColorLevelCommand command = new ColorLevelCommand(master, null, null, blue, ColorLevelCommandFlags.Blue | ColorLevelCommandFlags.Master);
   command.Run(image);

   string destFileName = @"result.jpg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jpeg, 0);
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Examples;

public void ColorLevelCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   ColorLevelCommandData blue    = new ColorLevelCommandData();
   ColorLevelCommandData master  = new ColorLevelCommandData();
   //Specify Image levels
   blue.MinimumInput    = 20;
   blue.MaximumInput    = 200;
   blue.MinimumOutput   = 0;
   blue.MaximumOutput   = 255;
   blue.Gamma           = 100;
   // Master will cause the image to be Inversed
   master.MinimumInput  = 0;
   master.MaximumInput  = 255;
   master.MinimumOutput = 255;
   master.MaximumOutput = 0;
   master.Gamma         = 100;
   // Level the Blue and Master channels
   ColorLevelCommand command = new ColorLevelCommand(master, null, null, blue, ColorLevelCommandFlags.Blue | ColorLevelCommandFlags.Master);
   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.Color

Public Sub ColorLevelCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim blue As ColorLevelCommandData = New ColorLevelCommandData()
   Dim master As ColorLevelCommandData = New ColorLevelCommandData()
   'Specify Image levels
   blue.MinimumInput = 20
   blue.MaximumInput = 200
   blue.MinimumOutput = 0
   blue.MaximumOutput = 255
   blue.Gamma = 100
   ' Master will cause the image to be Inversed
   master.MinimumInput = 0
   master.MaximumInput = 255
   master.MinimumOutput = 255
   master.MaximumOutput = 0
   master.Gamma = 100
   ' Level the Blue and Master channels
   Dim command As ColorLevelCommand = New ColorLevelCommand(master, Nothing, Nothing, blue, ColorLevelCommandFlags.Blue Or ColorLevelCommandFlags.Master)
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub
必要条件

ターゲットプラットホーム

参照

参照

ColorLevelCommandメンバ
Leadtools.ImageProcessing.Color名前空間
明度とコントラストの変更
色の補正
Leadtools.ImageProcessing.Effects.SharpenCommand
PosterizeCommandクラス
Leadtools.ImageProcessing.Effects.MosaicCommand
Leadtools.ImageProcessing.Effects.EmbossCommand
Leadtools.ImageProcessing.Core.MedianCommand
Leadtools.ImageProcessing.Effects.AddNoiseCommand
IntensityDetectCommandクラス
Leadtools.ImageProcessing.Effects.SpatialFilterCommand
Leadtools.ImageProcessing.Effects.BinaryFilterCommand
Leadtools.ImageProcessing.Core.MaximumCommand
Leadtools.ImageProcessing.Core.MinimumCommand
Leadtools.ImageProcessing.Effects.OilifyCommand
SolarizeCommandクラス
Leadtools.ImageProcessing.Core.WindowLevelCommand
AutoColorLevelCommandクラス
SelectiveColorCommandクラス
AdjustTintCommandクラス
Leadtools.ImageProcessing.Core.HalfToneCommand