Class HistogramEqualizationOptions

Data container providing the different options for the histogram equalization.

Inheritance

Object

HistogramEqualizationOptions

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: SixLabors.ImageSharp.Processing.Processors.Normalization

Assembly: SixLabors.ImageSharp.dll

Syntax

public class HistogramEqualizationOptions

Properties

ClipHistogram

Gets or sets a value indicating whether to clip the histogram bins at a specific value. It is recommended to use clipping when the AdaptiveTileInterpolation method is used, to suppress artifacts which can occur on the borders of the tiles. Defaults to false.

Declaration

public bool ClipHistogram { get; set; }

Property Value

Type	Description
Boolean

ClipLimit

Gets or sets the histogram clip limit. Adaptive histogram equalization may cause noise to be amplified in near constant regions. To reduce this problem, histogram bins which exceed a given limit will be capped at this value. The exceeding values will be redistributed equally to all other bins. The clipLimit depends on the size of the tiles the image is split into and therefore the image size itself. Defaults to 350.

Declaration

public int ClipLimit { get; set; }

Property Value

Type	Description
Int32

Remarks

For more information, see also: https://en.wikipedia.org/wiki/Adaptive_histogram_equalization#Contrast_Limited_AHE

LuminanceLevels

Gets or sets the number of different luminance levels. Typical values are 256 for 8-bit grayscale images or 65536 for 16-bit grayscale images. Defaults to 256.

Declaration

public int LuminanceLevels { get; set; }

Property Value

Type	Description
Int32

Method

Gets or sets the histogram equalization method to use. Defaults to global histogram equalization.

Declaration

public HistogramEqualizationMethod Method { get; set; }

Property Value

Type	Description
HistogramEqualizationMethod

NumberOfTiles

Gets or sets the number of tiles the image is split into (horizontal and vertically) for the adaptive histogram equalization. Defaults to 8.

Declaration

public int NumberOfTiles { get; set; }

Property Value

Type	Description
Int32