public class ApplyMathematicalLogicCommand : RasterCommand
@interface LTApplyMathematicalLogicCommand : LTRasterCommand
public class ApplyMathematicalLogicCommand
extends RasterCommand
public:
ref class ApplyMathematicalLogicCommand : RasterCommand
class ApplyMathematicalLogicCommand(RasterCommand):
This command does not support 32-bit grayscale images.
In 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.
Apply Mathematical Logic Function - Before
Apply Mathematical Logic Function - After
View additional platform support for this Apply Mathematical Logic function.
Run the ApplyMathematicalLogicCommand on an image.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
public void ApplyMathematicalLogicCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\NaturalFruits.jpg"));
// Prepare the command
ApplyMathematicalLogicCommand 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:\LEADTOOLS22\Resources\Images";
}
ApplyMathematicalLogicCommand Members
Leadtools.ImageProcessing.Color Namespace
Flags for ApplyMathematicalLogicCommand
Changing Brightness and Contrast
Leadtools.ImageProcessing.Effects.CombineCommand
HistogramContrastCommand Class
HistogramEqualizeCommand Class
Leadtools.ImageProcessing.FillCommand
Help Collections
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.NET, Java, Android, and iOS/macOS Assemblies
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Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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