Class TonemapDrago

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.

Inheritance
System.Object
DisposableObject
DisposableCvObject
Algorithm
Tonemap
TonemapDrago
Implements
Inherited Members
Namespace: OpenCvSharp
Assembly: OpenCvSharp.dll
Syntax
public sealed class TonemapDrago : Tonemap, ICvPtrHolder

Properties

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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.

Declaration
public float Bias { get; set; }
Property Value
Type Description
System.Single
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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.

Declaration
public float Saturation { get; set; }
Property Value
Type Description
System.Single

Methods

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Create(Single, Single, Single)

Creates TonemapDrago object

Declaration
public static TonemapDrago Create(float gamma = 1F, float saturation = 1F, float bias = 0.85F)
Parameters
Type Name Description
System.Single gamma

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.
System.Single saturation

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

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
Type Description
TonemapDrago
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DisposeManaged()

Releases managed resources

Declaration
protected override void DisposeManaged()
Overrides
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DisposeUnmanaged()

Declaration
protected override void DisposeUnmanaged()
Overrides
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Get()

Declaration
public override IntPtr Get()
Returns
Type Description
IntPtr
Overrides

Implements