Class AutoLevelProcessor

Applies a luminance histogram equilization to the image.

Inheritance
Object
HistogramEqualizationProcessor
AutoLevelProcessor
Implements
Inherited Members
Namespace: SixLabors.ImageSharp.Processing.Processors.Normalization
Assembly: SixLabors.ImageSharp.dll
Syntax
public class AutoLevelProcessor : HistogramEqualizationProcessor, IImageProcessor

Constructors

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AutoLevelProcessor(Int32, Boolean, Int32, Boolean)

Initializes a new instance of the AutoLevelProcessor class. It uses the exact minimum and maximum values found in the luminance channel, as the BlackPoint and WhitePoint to linearly stretch the colors (and histogram) of the image.

Declaration
public AutoLevelProcessor(int luminanceLevels, bool clipHistogram, int clipLimit, bool syncChannels)
Parameters
Type Name Description
Int32 luminanceLevels

The number of different luminance levels. Typical values are 256 for 8-bit grayscale images or 65536 for 16-bit grayscale images.
Boolean clipHistogram

Indicating whether to clip the histogram bins at a specific value.
Int32 clipLimit

The histogram clip limit. Histogram bins which exceed this limit, will be capped at this value.
Boolean syncChannels

Whether to apply a synchronized luminance value to each color channel.

Properties

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SyncChannels

Gets a value indicating whether to apply a synchronized luminance value to each color channel.

Declaration
public bool SyncChannels { get; }
Property Value
Type Description
Boolean

Methods

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CreatePixelSpecificProcessor<TPixel>(Configuration, Image<TPixel>, Rectangle)

Creates a pixel specific IImageProcessor<TPixel> that is capable of executing the processing algorithm on an Image<TPixel>.

Declaration
public override IImageProcessor<TPixel> CreatePixelSpecificProcessor<TPixel>(Configuration configuration, Image<TPixel> source, Rectangle sourceRectangle)
    where TPixel : struct, IPixel<TPixel>
Parameters
Type Name Description
Configuration configuration

The configuration which allows altering default behaviour or extending the library.
Image<TPixel> source

The source image. Cannot be null.
Rectangle sourceRectangle

The Rectangle structure that specifies the portion of the image object to draw.
Returns
Type Description
IImageProcessor<TPixel>

The IImageProcessor<TPixel>
Type Parameters
Name Description
TPixel

The pixel type.
Overrides
SixLabors.ImageSharp.Processing.Processors.Normalization.HistogramEqualizationProcessor.CreatePixelSpecificProcessor<TPixel>(SixLabors.ImageSharp.Configuration, SixLabors.ImageSharp.Image<TPixel>, SixLabors.ImageSharp.Rectangle)

Implements