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

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LightControlCommandクラス








メンバ 
ピクセル値をリマップすることで、画像の全部または一部を明るくしたり、暗くしたりします。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 LightControlCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As LightControlCommand
public sealed class LightControlCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTLightControlCommand : LTRasterCommand
public class LightControlCommand extends RasterCommand
function Leadtools.ImageProcessing.Color.LightControlCommand()
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LightControlCommandを実行します。

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

   
Public Sub LightControlCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "dirty_barcode.jpg"))

   ' Prepare the command
   Dim LowerAverage() As Integer
   ReDim LowerAverage(2)
   Dim Average() As Integer
   ReDim Average(2)
   Dim UpperAverage() As Integer
   ReDim UpperAverage(2)
   LowerAverage(0) = 100  'for blue, gray or yuv
   LowerAverage(1) = 120  'for green
   LowerAverage(2) = 80   'for red
     Average(0) = 210       'for blue, gray or yuv
     Average(1) = 210       'for green
     Average(2) = 210       'for red
     UpperAverage(0) = 255  'for blue, gray or yuv
     UpperAverage(1) = 255  'for green
     UpperAverage(2) = 255  'for red 
   Dim command As LightControlCommand = New LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv)
   ' change the lightness of the image.
   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 LightControlCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "dirty_barcode.jpg"));

   // Prepare the command
   int[] LowerAverage = new int[3];
   int[] Average  = new int[3];
   int[] UpperAverage = new int[3];
   LowerAverage[0] = 100;  //for blue, gray or yuv
   LowerAverage[1] = 120;  //for green
   LowerAverage[2] = 80;   //for red
   Average[0] = 210;       //for blue, gray or yuv
   Average[1] = 210;       //for green
   Average[2] = 210;       //for red
   UpperAverage[0] = 255;  //for blue, gray or yuv
   UpperAverage[1] = 255;  //for green
   UpperAverage[2] = 255;  //for red 
   LightControlCommand command = new LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv);
   // change the lightness of the image.
   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 LightControlCommandExample()
{
   // 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
   int[] LowerAverage = new int[3];
   int[] Average  = new int[3];
   int[] UpperAverage = new int[3];
   LowerAverage[0] = 100;  //for blue, gray or yuv
   LowerAverage[1] = 120;  //for green
   LowerAverage[2] = 80;   //for red
   Average[0] = 150;       //for blue, gray or yuv
   Average[1] = 140;       //for green
   Average[2] = 128;       //for red
   UpperAverage[0] = 190;  //for blue, gray or yuv
   UpperAverage[1] = 200;  //for green
   UpperAverage[2] = 220;  //for red 
   LightControlCommand command = new LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv);
   // change the lightness of the image.
   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 LightControlCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   int[] LowerAverage = new int[3];
   int[] Average  = new int[3];
   int[] UpperAverage = new int[3];
   LowerAverage[0] = 100;  //for blue, gray or yuv
   LowerAverage[1] = 120;  //for green
   LowerAverage[2] = 80;   //for red
   Average[0] = 150;       //for blue, gray or yuv
   Average[1] = 140;       //for green
   Average[2] = 128;       //for red
   UpperAverage[0] = 190;  //for blue, gray or yuv
   UpperAverage[1] = 200;  //for green
   UpperAverage[2] = 220;  //for red 
   LightControlCommand command = new LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv);
   // change the lightness of the image.
   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 LightControlCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim LowerAverage As Integer() = New Integer(2){}
   Dim Average As Integer() = New Integer(2){}
   Dim UpperAverage As Integer() = New Integer(2){}
   LowerAverage(0) = 100 'for blue, gray or yuv
   LowerAverage(1) = 120 'for green
   LowerAverage(2) = 80 'for red
   Average(0) = 150 'for blue, gray or yuv
   Average(1) = 140 'for green
   Average(2) = 128 'for red
   UpperAverage(0) = 190 'for blue, gray or yuv
   UpperAverage(1) = 200 'for green
   UpperAverage(2) = 220 'for red
   Dim command As LightControlCommand = New LightControlCommand(LowerAverage, Average, UpperAverage, LightControlCommandType.Yuv)
   ' change the lightness of the image.
   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

LightControlCommandメンバ
Leadtools.ImageProcessing.Color名前空間
色の補正
Leadtools.ImageProcessing.Effects.SharpenCommand
PosterizeCommandクラス
Leadtools.ImageProcessing.Effects.EmbossCommand
Leadtools.ImageProcessing.Effects.AverageCommand
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
Leadtools.ImageProcessing.Effects.MosaicCommand
Leadtools.ImageProcessing.SpecialEffects.PixelateCommand
AutoColorLevelCommandクラス
ColorLevelCommandクラス
Leadtools.ImageProcessing.Core.CorrelationListCommand
GrayScaleToDuotoneCommandクラス
GrayScaleToMultitoneCommandクラス
Leadtools.ImageProcessing.Core.HolePunchRemoveCommand
SelectiveColorCommandクラス
Leadtools.ImageProcessing.Effects.SkeletonCommand
AdjustTintCommandクラス
Leadtools.ImageProcessing.Core.HalfToneCommand