Configure and measure the sharpness of a given image. More...

#include <peak_ipl/algorithm/peak_ipl_sharpness.hpp>

Data Structures
struct	SharpnessROI

Public Types
enum class	SharpnessAlgorithm : uint16_t { Tenengrad , MeanScore , HistogramVariance , Sobel }
	Measure Algorithms. More...

enum class	SharpnessROIWeight : uint16_t { Weak = 0x0021 , Medium = 0x0042 , Strong = 0x0063 }

using	SharpnessROIList = std::vector< SharpnessROI >

Public Member Functions
	Sharpness ()
	Constructor for a new Sharpness instance.

	~Sharpness ()
	Destructor for the Sharpness instance.

	Sharpness (const Sharpness &other)
	Copy Constructor for a new Sharpness instance.

Sharpness &	operator= (const Sharpness &other)
	Copy assigment for Sharpness instance.

	Sharpness (Sharpness &&other) noexcept
	Move constructor for Sharpness instance.

Sharpness &	operator= (Sharpness &&other) noexcept
	Move assignment for Sharpness instance.

double	Measure (const Image &image)
	Measures the sharpness of the given image. The higher the value, the better the sharpness.

bool	IsPixelFormatSupported (PixelFormatName pixelFormatName) const
	Checks if the given pixel format can be used for sharpness measurement.

std::vector< PixelFormatName >	SupportedPixelFormats () const
	Returns a list of supported pixel formats which can be used for sharpness measurement.

void	SetAlgorithm (SharpnessAlgorithm algorithm)
	Sets the algorithm used for measurement calculation.

SharpnessAlgorithm	Algorithm () const
	Returns the used algorithm for the sharpness measurement.

Size2D	ROIMinSize () const
	Gets the minimum size of a ROI, in which the sharpness is measured.

void	SetROIs (const SharpnessROIList &rois)
	Sets the region of interests in which the sharpness is measured.

void	SetROI (const SharpnessROI &roi)
	Set ROI in which the sharpness is measured.

void	SetROI (const Rect2D &roi)
	Set ROI in which the sharpness is measured.

SharpnessROIList	ROIs () const
	Gets ROIs in which the sharpness is measured.

Detailed Description

Configure and measure the sharpness of a given image.

The class allows the measurement of the sharpness in a defined ROI of the given image. To get a sharpness value, the edges in the image are evaluated. The sharpness can only be indicated as a relative value, as it depends on the edges in the current image. An image with fewer edges won't reach the sharpness value of an image with a lot of edges.

Member Typedef Documentation

◆ SharpnessROIList

using peak::ipl::Sharpness::SharpnessROIList = std::vector<SharpnessROI>

Member Enumeration Documentation

◆ SharpnessAlgorithm

enum class peak::ipl::Sharpness::SharpnessAlgorithm : uint16_t

strong

Measure Algorithms.

Enumerator
Tenengrad	contrast-based sharpness algorithm (convolution)
MeanScore	contrast-based sharpness algorithm (mean value)
HistogramVariance	statistics-based sharpness algorithm
Sobel	contrast-based sharpness algorithm (convolution)

◆ SharpnessROIWeight

enum class peak::ipl::Sharpness::SharpnessROIWeight : uint16_t

strong

Weight for a sharpness roi. The weight influences the sum of the measure. Strong roi have more weight than medium and medium more weight than weak.

Enumerator
Weak	Weak use of roi for the measurement.
Medium	Normal use of roi for the measurement.
Strong	Strong use of roi for the measurement.

Constructor & Destructor Documentation

◆ Sharpness() [1/3]

peak::ipl::Sharpness::Sharpness ( )

inline

Constructor for a new Sharpness instance.

Creates a new Sharpness instance.

Since: 1.6

◆ ~Sharpness()

peak::ipl::Sharpness::~Sharpness ( )

inline

Destructor for the Sharpness instance.

Destroys a Sharpness instance.

Since: 1.6

◆ Sharpness() [2/3]

peak::ipl::Sharpness::Sharpness ( const Sharpness & other )

inline

Copy Constructor for a new Sharpness instance.

Creates a new Sharpness instance.

Note: This only creates a shallow copy. See Shallow copy (since 1.8) for a detailed explanation.

Parameters

[in] other The other instance to acquire a reference for.

Since: 1.6 Deleted; 1.8 Implemented as shallow copy

◆ Sharpness() [3/3]

peak::ipl::Sharpness::Sharpness ( Sharpness && other )

inlinenoexcept

Move constructor for Sharpness instance.

Moves the instance from other to this. Afterwards other is invalid.

Parameters

[in] other The other instance to move.

Since: 1.6

Member Function Documentation

◆ Algorithm()

Sharpness::SharpnessAlgorithm peak::ipl::Sharpness::Algorithm ( ) const

inline

Returns the used algorithm for the sharpness measurement.

Returns: Current algorithm

Since: 1.6

◆ IsPixelFormatSupported()

bool peak::ipl::Sharpness::IsPixelFormatSupported ( PixelFormatName pixelFormatName ) const

inline

Checks if the given pixel format can be used for sharpness measurement.

Returns: Flag whether the given pixel format is supported.

Parameters

[in] pixelFormatName The pixelFormat of the input image.

Since: 1.6

◆ Measure()

double peak::ipl::Sharpness::Measure ( const Image & image )

inline

Measures the sharpness of the given image. The higher the value, the better the sharpness.

Parameters

[in] image The image to measure the relative sharpness.

Note: Will not work with packed pixel formats. See Packed pixel format handling for the correct handling of this.

Returns: Relative sharpness value

Exceptions

InvalidPixelFormat pixel format isn't supported.

Since: 1.6

◆ operator=() [1/2]

Sharpness & peak::ipl::Sharpness::operator= ( const Sharpness & other )

inline

Copy assigment for Sharpness instance.

Acquires a reference from other to this instance. If this instance already has a reference, it will be destroyed.

Note: See Shallow copy (since 1.8) for a detailed explanation.

Parameters

[in] other The other instance to acquire a reference for.

Since: 1.6 Deleted; 1.8 Implemented as shallow copy

◆ operator=() [2/2]

Sharpness & peak::ipl::Sharpness::operator= ( Sharpness && other )

inlinenoexcept

Move assignment for Sharpness instance.

Moves the instance from other to this. Afterwards other is invalid.

Parameters

[in] other The other instance to move.

Since: 1.6

◆ ROIMinSize()

Size2D peak::ipl::Sharpness::ROIMinSize ( ) const

inline

Gets the minimum size of a ROI, in which the sharpness is measured.

Returns: Required minimum size of a roi

Since: 1.6

◆ ROIs()

Sharpness::SharpnessROIList peak::ipl::Sharpness::ROIs ( ) const

inline

Gets ROIs in which the sharpness is measured.

Returns: Active measurement rois

Since: 1.6

◆ SetAlgorithm()

void peak::ipl::Sharpness::SetAlgorithm ( SharpnessAlgorithm algorithm )

inline

Sets the algorithm used for measurement calculation.

Since: 1.6

◆ SetROI() [1/2]

void peak::ipl::Sharpness::SetROI ( const Rect2D & roi )

inline

Set ROI in which the sharpness is measured.

Parameters

[in] roi Rect2D to set.

Since: 1.6

◆ SetROI() [2/2]

void peak::ipl::Sharpness::SetROI ( const SharpnessROI & roi )

inline

Set ROI in which the sharpness is measured.

Parameters

[in] roi SharpnessROI to set.

Since: 1.6

◆ SetROIs()

void peak::ipl::Sharpness::SetROIs ( const SharpnessROIList & rois )

inline

Sets the region of interests in which the sharpness is measured.

Parameters

[in] rois SharpnessROIList to set.

Since: 1.6

◆ SupportedPixelFormats()

std::vector< PixelFormatName > peak::ipl::Sharpness::SupportedPixelFormats ( ) const

inline

Returns a list of supported pixel formats which can be used for sharpness measurement.

Returns: List of supported pixel formats.

Since: 1.6

The documentation for this class was generated from the following file:

peak_ipl/algorithm/peak_ipl_sharpness.hpp

Data Structures

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

◆ SharpnessROIList

Member Enumeration Documentation

◆ SharpnessAlgorithm

◆ SharpnessROIWeight

Constructor & Destructor Documentation

◆ Sharpness() [1/3]

◆ ~Sharpness()

◆ Sharpness() [2/3]

◆ Sharpness() [3/3]

Member Function Documentation

◆ Algorithm()

◆ IsPixelFormatSupported()

◆ Measure()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ ROIMinSize()

◆ ROIs()

◆ SetAlgorithm()

◆ SetROI() [1/2]

◆ SetROI() [2/2]

◆ SetROIs()

◆ SupportedPixelFormats()