Class TonemapDrago

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

Adaptive logarithmic mapping is a fast global tonemapping algorithm that scales the image in logarithmic domain.

Since it's a global operator the same function is applied to all the pixels, it is controlled by the bias parameter. Optional saturation enhancement is possible as described in @cite FL02. For more information see @cite DM03.

public sealed class TonemapDrago : Tonemap, IDisposable, ICvPtrHolder

Inheritance

object

DisposableObject

DisposableCvObject

Algorithm

Tonemap

TonemapDrago

Implements

IDisposable

ICvPtrHolder

Inherited Members

Tonemap.Create(float)

Tonemap.Process(InputArray, OutputArray)

Tonemap.Gamma

Algorithm.Write(FileStorage)

Algorithm.Read(FileNode)

Algorithm.Empty

Algorithm.Save(string)

Algorithm.GetDefaultName()

DisposableCvObject.CvPtr

DisposableObject.IsDisposed

DisposableObject.IsEnabledDispose

DisposableObject.Dispose()

DisposableObject.ThrowIfDisposed()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Properties

Bias

Gets or sets value for bias function in [0, 1] range. Values from 0.7 to 0.9 usually give best results, default value is 0.85.

public float Bias { get; set; }

Property Value

float

Saturation

Gets or sets positive saturation enhancement value. 1.0 preserves saturation, values greater than 1 increase saturation and values less than 1 decrease it.

public float Saturation { get; set; }

Property Value

float

Methods

Create(float, float, float)

Creates TonemapDrago object

public static TonemapDrago Create(float gamma = 1, float saturation = 1, float bias = 0.85)

Parameters

gamma float

positive value for gamma correction. Gamma value of 1.0 implies no correction, gamma equal to 2.2f is suitable for most displays. Generally gamma > 1 brightens the image and gamma < 1 darkens it.

saturation float

positive saturation enhancement value. 1.0 preserves saturation, values greater than 1 increase saturation and values less than 1 decrease it.

bias float

value for bias function in [0, 1] range. Values from 0.7 to 0.9 usually give best results, default value is 0.85.

Returns

TonemapDrago

DisposeManaged()

Releases managed resources

protected override void DisposeManaged()