public class WindowLevelCommand : RasterCommand
@interface LTWindowLevelCommand : LTRasterCommand
public class WindowLevelCommand
extends RasterCommand
public ref class WindowLevelCommand : public RasterCommand
Only TIFF and DICOM file formats are capable of saving images that have been window-leveled. Images can be window-leveled by calling WindowLevel and specifying RasterWindowLevelMode.PaintAndProcessing for the flags parameter, by using the WindowLevelCommand or by loading an image from a file format that supports Window Leveling. If a window-leveled image is saved as any other file format, the image data will be converted before being saved. For more information, refer to Saving Window-Leveled Images. See WindowLevelExtCommand for a version of this class using 16-bit lookup tables. LEADTOOLS supports two types of LUTs for 10-16-bit grayscale images (8-bit LUT and 16-bit LUT). Typical grayscale image display and processing is done using an 8-bit LUT. But, you can also use a 16-bit LUT, which offers more precision. Some special video cards and monitors also support display of grayscale images using a 16-bit LUT. For more information, refer to Introduction to Image Processing With LEADTOOLS. For more information, refer to Grayscale Images.
Window Level Function - Before
Window Level Function - After
View additional platform support for this Window Level function.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
public void WindowLevelCommandExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "IMAGE3.dcm"));
// Prepare the command
int x;
byte y;
int Size;
RasterColor[] LookupTable;
//Change the image to 16-bit grayscale
GrayscaleCommand graycommand = new GrayscaleCommand(16);
MinMaxBitsCommand MinMaxBits = new MinMaxBitsCommand();
MinMaxValuesCommand MinMaxValues = new MinMaxValuesCommand();
WindowLevelCommand command = new WindowLevelCommand();
graycommand.Run(image);
MinMaxBits.Run(image);
MinMaxValues.Run(image);
Size = (1 << (MinMaxBits.MaximumBit - MinMaxBits.MinimumBit + 1));
LookupTable = new Leadtools.RasterColor[Size];
// fill the first half of the LookupTable with RED.
for (x = 0; x < Size / 2; x++)
LookupTable[x] = new Leadtools.RasterColor(255, 0, 0);
// fill the rest with gray values.
for (x = Size / 2; x < Size; x++)
{
y = (byte)((x - MinMaxValues.MinimumValue) * 255 / (MinMaxValues.MaximumValue - MinMaxValues.MinimumValue));
LookupTable[x] = new Leadtools.RasterColor(y, y, y);
}
command.HighBit = MinMaxBits.MaximumBit;
command.LowBit = MinMaxBits.MinimumBit;
command.LookupTable = LookupTable;
command.Order = Leadtools.RasterByteOrder.Bgr;
command.Run(image);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Leadtools.ImageProcessing.Core Namespace
Introduction to Image Processing With LEADTOOLS
ApplyVoiLookupTableCommand Class
Leadtools.ImageProcessing.Color.ChannelMixerCommand
Leadtools.ImageProcessing.Effects.DeinterlaceCommand
Leadtools.ImageProcessing.Color.DesaturateCommand
Leadtools.ImageProcessing.Effects.EdgeDetectStatisticalCommand
Leadtools.ImageProcessing.Color.LightControlCommand
Leadtools.ImageProcessing.Effects.SmoothEdgesCommand
Leadtools.ImageProcessing.Color.LocalHistogramEqualizeCommand
Leadtools.ImageProcessing.Color.AddWeightedCommand
Leadtools.ImageProcessing.Color.ColorMergeCommand
Leadtools.ImageProcessing.Color.ColorSeparateCommand
Leadtools.ImageProcessing.Color.MultiplyCommand
Leadtools.ImageProcessing.Color.AutoColorLevelCommand
Leadtools.ImageProcessing.Color.ColorLevelCommand
Leadtools.ImageProcessing.Color.GrayScaleToDuotoneCommand
Leadtools.ImageProcessing.Color.GrayScaleToMultitoneCommand
Leadtools.ImageProcessing.Effects.RegionHolesRemovalCommand
Leadtools.ImageProcessing.Color.SelectiveColorCommand
Leadtools.ImageProcessing.Effects.SkeletonCommand
Leadtools.ImageProcessing.Color.ChangeHueSaturationIntensityCommand
Leadtools.ImageProcessing.Color.ColorReplaceCommand
Leadtools.ImageProcessing.Color.ColorThresholdCommand
Leadtools.ImageProcessing.Color.MathematicalFunctionCommand
Leadtools.ImageProcessing.Color.SegmentCommand
Leadtools.ImageProcessing.Color.AdaptiveContrastCommand
Leadtools.ImageProcessing.Color.ApplyMathematicalLogicCommand
Leadtools.ImageProcessing.Color.ColorIntensityBalanceCommand
Leadtools.ImageProcessing.Color.ContrastBrightnessIntensityCommand
Leadtools.ImageProcessing.Color.DynamicBinaryCommand
Leadtools.ImageProcessing.Effects.EdgeDetectEffectCommand
Leadtools.ImageProcessing.SpecialEffects.FunctionalLightCommand
Help Collections
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Imaging, Medical, and Document
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Imaging, Medical, and Document
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