eVision.EFourierTransformer Class Reference

Utility class to manage direct and inverse Fast Fourier Transforms. More...

Public Member Functions
None	__init__ (self)
	Constructs an eVision.EFourierTransformer object initialized to its default values.
None	__init__ (self, eVision.EFourierTransformer other)
	Constructs an eVision.EFourierTransformer object initialized to its default values.
None	Load (self, str path)
	Loads the eVision.EFourierTransformer.
None	Load (self, eVision.ESerializer|None serializer)
	Loads the eVision.EFourierTransformer.
None	Save (self, str path)
	Saves the eVision.EFourierTransformer.
None	Save (self, eVision.ESerializer|None serializer)
	Saves the eVision.EFourierTransformer.
None	DirectTransform (self, eVision.EROIBW8 spatialImage, eVision.EFourierImage frequentialImage, eVision.EFrequentialDomainFormat domainFormat)
	Computes the direct transform.
None	DirectTransform (self, eVision.EROIBW8 spatialImage, eVision.EFourierImage frequentialImage)
	Computes the direct transform.
None	DirectTransform (self, eVision.EROIBW16 spatialImage, eVision.EFourierImage frequentialImage, eVision.EFrequentialDomainFormat domainFormat)
	Computes the direct transform.
None	DirectTransform (self, eVision.EROIBW16 spatialImage, eVision.EFourierImage frequentialImage)
	Computes the direct transform.
None	DirectTransform (self, eVision.EROIBW32f spatialImage, eVision.EFourierImage frequentialImage, eVision.EFrequentialDomainFormat domainFormat)
	Computes the direct transform.
None	DirectTransform (self, eVision.EROIBW32f spatialImage, eVision.EFourierImage frequentialImage)
	Computes the direct transform.
None	InverseTransform (self, eVision.EFourierImage frequentialImage, eVision.EROIBW8 spatialImage)
	Computes the inverse transform.
None	InverseTransform (self, eVision.EFourierImage frequentialImage, eVision.EROIBW16 spatialImage)
	Computes the inverse transform.
None	InverseTransform (self, eVision.EFourierImage frequentialImage, eVision.EROIBW32f spatialImage)
	Computes the inverse transform.

Detailed Description

Utility class to manage direct and inverse Fast Fourier Transforms.

Remarks:

License(s): EasyImage

Constructor & Destructor Documentation

__init__() [1/2]

None eVision.EFourierTransformer.__init__

(

self

)

Constructs an eVision.EFourierTransformer object initialized to its default values.

__init__() [2/2]

None eVision.EFourierTransformer.__init__	(		self,
		eVision.EFourierTransformer	other )

Constructs an eVision.EFourierTransformer object initialized to its default values.

Parameters

other

Another eVision.EFourierTransformer.

Member Function Documentation

DirectTransform() [1/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW16	spatialImage,
		eVision.EFourierImage	frequentialImage )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.

DirectTransform() [2/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW16	spatialImage,
		eVision.EFourierImage	frequentialImage,
		eVision.EFrequentialDomainFormat	domainFormat )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.
domainFormat	Format of the output frequential image

DirectTransform() [3/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW32f	spatialImage,
		eVision.EFourierImage	frequentialImage )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.

DirectTransform() [4/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW32f	spatialImage,
		eVision.EFourierImage	frequentialImage,
		eVision.EFrequentialDomainFormat	domainFormat )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.
domainFormat	Format of the output frequential image

DirectTransform() [5/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW8	spatialImage,
		eVision.EFourierImage	frequentialImage )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.

DirectTransform() [6/6]

None eVision.EFourierTransformer.DirectTransform	(		self,
		eVision.EROIBW8	spatialImage,
		eVision.EFourierImage	frequentialImage,
		eVision.EFrequentialDomainFormat	domainFormat )

Computes the direct transform.

Remarks:

No scaling is applied, scaling applied in eVision.EFourierTransformer.InverseTransform.

Parameters

spatialImage	Input image in spatial domain.
frequentialImage	Output image in frequential domain. Must be of the same size as spatialImage if domainFormat is eVision.EFrequentialDomainFormat.Packed or twice the width (and same height) if it is eVision.EFrequentialDomainFormat.ComplexExtended.
domainFormat	Format of the output frequential image

InverseTransform() [1/3]

None eVision.EFourierTransformer.InverseTransform	(		self,
		eVision.EFourierImage	frequentialImage,
		eVision.EROIBW16	spatialImage )

Computes the inverse transform.

Remarks:

Scaling is applied, no scaling applied in eVision.EFourierTransformer.DirectTransform. The frequential format of eVision.EFourierImage is taken into account when applying the inverse fourier transform.

Parameters

frequentialImage	Input image in frequential domain. frequentialImage's width must be a multiple of 2 if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.ComplexExtended.
spatialImage	Output image in spatial domain. Must be of the same size as frequentialImage if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.Packed or twice thinner if it is eVision.EFrequentialDomainFormat.ComplexExtended.

InverseTransform() [2/3]

None eVision.EFourierTransformer.InverseTransform	(		self,
		eVision.EFourierImage	frequentialImage,
		eVision.EROIBW32f	spatialImage )

Computes the inverse transform.

Remarks:

Scaling is applied, no scaling applied in eVision.EFourierTransformer.DirectTransform. The frequential format of eVision.EFourierImage is taken into account when applying the inverse fourier transform.

Parameters

frequentialImage	Input image in frequential domain. frequentialImage's width must be a multiple of 2 if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.ComplexExtended.
spatialImage	Output image in spatial domain. Must be of the same size as frequentialImage if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.Packed or twice thinner if it is eVision.EFrequentialDomainFormat.ComplexExtended.

InverseTransform() [3/3]

None eVision.EFourierTransformer.InverseTransform	(		self,
		eVision.EFourierImage	frequentialImage,
		eVision.EROIBW8	spatialImage )

Computes the inverse transform.

Remarks:

Scaling is applied, no scaling applied in eVision.EFourierTransformer.DirectTransform. The frequential format of eVision.EFourierImage is taken into account when applying the inverse fourier transform.

Parameters

frequentialImage	Input image in frequential domain. frequentialImage's width must be a multiple of 2 if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.ComplexExtended.
spatialImage	Output image in spatial domain. Must be of the same size as frequentialImage if its eVision.EFourierImage.FrequentialDomainFormat is eVision.EFrequentialDomainFormat.Packed or twice thinner if it is eVision.EFrequentialDomainFormat.ComplexExtended.

Load() [1/2]

None eVision.EFourierTransformer.Load	(		self,
		eVision.ESerializer | None	serializer )

Loads the eVision.EFourierTransformer.

The given eVision.ESerializer must have been created for reading.

Parameters

serializer

The serializer.

Load() [2/2]

None eVision.EFourierTransformer.Load	(		self,
		str	path )

Loads the eVision.EFourierTransformer.

The given eVision.ESerializer must have been created for reading.

Parameters

path	The file path.

Save() [1/2]

None eVision.EFourierTransformer.Save	(		self,
		eVision.ESerializer | None	serializer )

Saves the eVision.EFourierTransformer.

The given eVision.ESerializer must have been created for writing.

Parameters

serializer

The eVision.ESerializer object that is written to.

Save() [2/2]

None eVision.EFourierTransformer.Save	(		self,
		str	path )

Saves the eVision.EFourierTransformer.

The given eVision.ESerializer must have been created for writing.

Parameters

path	The file path.