FastFourierTransformCommandFlags Enumeration

Summary

Flags that indicate the transformation type, operation channel, frequency data type used to reconstruct the image, and the clipping type. This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Syntax

Objective-C

C++

Java

[FlagsAttribute()] 
public enum FastFourierTransformCommandFlags

<FlagsAttribute()> 
Public Enum FastFourierTransformCommandFlags

typedef NS_OPTIONS(NSUInteger, LTFastFourierTransformCommandFlags)

public enum FastFourierTransformCommandFlags

[FlagsAttribute()] 
public enum class FastFourierTransformCommandFlags

Members

Value	Member	Description
0x00000000	None	No change.
0x00000001	FastFourierTransform	Convert the image into the frequency domain and store the results in the Data property of the FourierTransformInformation object.
0x00000002	InverseFastFourierTransform	Construct an image from the frequency components in the Data property of the FourierTransformInformation object. The image will be stored in the Run method image. This option will change the values of the Data property of the FourierTransformInformation object.
0x00000010	Blue	Work on the blue channel.
0x00000020	Green	Work on the green channel.
0x00000030	Red	Work on the red channel.
0x00000040	Gray	Work on the master channel. If this flag is combined with InverseFastFourierTransform, the reconstructed image will be gray.
0x00000100	Magnitude	Construct the image from the frequency magnitude only.
0x00000200	Phase	Construct the image from the frequency phase only.
0x00000300	Both	Construct the image from both magnitude and phase.
0x00001000	Clip	Clip the constructed image values to be between 0 and 255.
0x00002000	Scale	Scale the constructed image Valid values are between 0 and 255.
0x00010000	PadOptimally	Pad the width and height of the image so that each is its nearest power of two.
0x00020000	PadSquare	Pad the width and height of the image so that each is the same power of two nearest to the larger of the two dimensions.

Remarks

You can use a bitwise OR ( ¦ ) to specify one flag from each group.

Group	Flags
Flags that represent the transformation type	FastFourierTransform, InverseFastFourierTransform
Flags that represent the operation channel type	Blue, Green, Red, Gray
Flags that represent the frequency data type used for constructing the image: this flag is used only if InverseFastFourierTransform is set and will be ignored if FastFourierTransform is set	Magnitude, Phase, Both
Flags that represent the clipping type. This flag is used only if InverseFastFourierTransform is set and will be ignored if FFT_FFT is set	Clip, Scale
Flags that represent how to pad an image that is not a power of two	PadOptimally, PadSquare

Requirements

Target Platforms

Reference

Leadtools.ImageProcessing.Core Namespace

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Help Version 20.0.2020.4.3

Leadtools.ImageProcessing.Core Assembly

Introduction

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Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies