Class QualityPSNR

Full reference peak signal to noise ratio (PSNR) algorithm https://en.wikipedia.org/wiki/Peak_signal-to-noise_ratio

Inheritance
System.Object
DisposableObject
DisposableCvObject
Algorithm
QualityBase
QualityPSNR
Implements
Inherited Members
Namespace: OpenCvSharp.Quality
Assembly: OpenCvSharp.dll
Syntax
public class QualityPSNR : QualityBase, ICvPtrHolder

Constructors

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QualityPSNR(IntPtr)

Creates instance by raw pointer

Declaration
protected QualityPSNR(IntPtr p)
Parameters
Type Name Description
IntPtr p

Properties

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MaxPixelValue

get or set the maximum pixel value used for PSNR computation

Declaration
public double MaxPixelValue { get; set; }
Property Value
Type Description
System.Double

Methods

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Compute(InputArray, InputArray, OutputArray, Double)

static method for computing quality

Declaration
public static Scalar Compute(InputArray ref, InputArray cmp, OutputArray qualityMap, double maxPixelValue = 255)
Parameters
Type Name Description
InputArray ref
InputArray cmp
OutputArray qualityMap

output quality map, or null
System.Double maxPixelValue

maximum per-channel value for any individual pixel; eg 255 for uint8 image
Returns
Type Description
OpenCvSharp.Scalar

PSNR value, or double.PositiveInfinity if the MSE between the two images == 0
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Create(InputArray, Double)

Create an object which calculates quality

Declaration
public static QualityPSNR Create(InputArray ref, double maxPixelValue = 255)
Parameters
Type Name Description
InputArray ref

input image to use as the source for comparison
System.Double maxPixelValue

maximum per-channel value for any individual pixel; eg 255 for uint8 image
Returns
Type Description
QualityPSNR
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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

Implements