Performs specific mathematical or logical operations on the colors of the image.
public class ApplyMathematicalLogicCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommandPublic Class ApplyMathematicalLogicCommandInherits Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommandImplements Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand
public sealed class ApplyMathematicalLogicCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand@interface LTApplyMathematicalLogicCommand : LTRasterCommandpublic class ApplyMathematicalLogicCommand extends RasterCommandfunction Leadtools.ImageProcessing.Color.ApplyMathematicalLogicCommand()public ref class ApplyMathematicalLogicCommand : public Leadtools.Imageprocessing.Leadtools.ImageProcessing.RasterCommand, Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommandIn 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))
For more information, refer to Changing Brightness and Contrast. For more information, refer to Correcting Colors. For more information, refer to Flags for ApplyMathematicalLogicCommand.
Run the ApplyMathematicalLogicCommand on an image.
Imports LeadtoolsImports Leadtools.CodecsImports Leadtools.ImageProcessing.ColorPublic Sub ApplyMathematicalLogicCommandExample()Dim codecs As New RasterCodecs()codecs.ThrowExceptionsOnInvalidImages = TrueDim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg"))' Prepare the commandDim command As ApplyMathematicalLogicCommand = New ApplyMathematicalLogicCommandcommand.Factor = 151command.Flags = ApplyMathematicalLogicCommandFlags.OperationMultiply Or ApplyMathematicalLogicCommandFlags.ValueDoNothing Or ApplyMathematicalLogicCommandFlags.ResultDoNothing' Multiply the colors of the bitmap using a factor of 1.51 .command.Run(leadImage)codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)End SubPublic NotInheritable Class LEAD_VARSPublic Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"End Class
using Leadtools;using Leadtools.Codecs;using Leadtools.ImageProcessing.Color;public void ApplyMathematicalLogicCommandExample(){// Load an imageRasterCodecs codecs = new RasterCodecs();codecs.ThrowExceptionsOnInvalidImages = true;RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\NaturalFruits.jpg"));// Prepare the commandApplyMathematicalLogicCommand command = new ApplyMathematicalLogicCommand();command.Factor = 151;command.Flags = ApplyMathematicalLogicCommandFlags.OperationMultiply | ApplyMathematicalLogicCommandFlags.ValueDoNothing | ApplyMathematicalLogicCommandFlags.ResultDoNothing;// Multiply the colors of the bitmap using a factor of 1.51 .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 ApplyMathematicalLogicCommandExample(){// Load an imageRasterCodecs codecs = new RasterCodecs();codecs.ThrowExceptionsOnInvalidImages = true;// Load the imagestring srcFileName = @"Assets\Image1.cmp";StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));// Prepare the commandApplyMathematicalLogicCommand command = new ApplyMathematicalLogicCommand();command.Factor = 151;command.Flags = ApplyMathematicalLogicCommandFlags.OperationMultiply | ApplyMathematicalLogicCommandFlags.ValueDoNothing | ApplyMathematicalLogicCommandFlags.ResultDoNothing;// Multiply the colors of the bitmap using a factor of 1.51 .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 ApplyMathematicalLogicCommandExample(RasterImage image, Stream outStream){// Prepare the commandApplyMathematicalLogicCommand command = new ApplyMathematicalLogicCommand();command.Factor = 151;command.Flags = ApplyMathematicalLogicCommandFlags.OperationMultiply | ApplyMathematicalLogicCommandFlags.ValueDoNothing | ApplyMathematicalLogicCommandFlags.ResultDoNothing;// Multiply the colors of the bitmap using a factor of 1.51 .command.Run(image);// Save result imageRasterCodecs codecs = new RasterCodecs();codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);image.Dispose();}
Imports LeadtoolsImports Leadtools.CodecsImports Leadtools.ImageProcessing.ColorPublic Sub ApplyMathematicalLogicCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)' Prepare the commandDim command As ApplyMathematicalLogicCommand = New ApplyMathematicalLogicCommand()command.Factor = 151command.Flags = ApplyMathematicalLogicCommandFlags.OperationMultiply Or ApplyMathematicalLogicCommandFlags.ValueDoNothing Or _ApplyMathematicalLogicCommandFlags.ResultDoNothing' Multiply the colors of the bitmap using a factor of 1.51 .command.Run(image)' Save result imageDim codecs As RasterCodecs = New RasterCodecs()codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)image.Dispose()End Sub
ApplyMathematicalLogicCommand Members
Leadtools.ImageProcessing.Color Namespace
Flags for ApplyMathematicalLogicCommand
Changing Brightness and Contrast
Leadtools.ImageProcessing.Effects.CombineCommand
HistogramContrastCommand Class
HistogramEqualizeCommand Class
Leadtools.ImageProcessing.FillCommand
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