InverseDft

Compute the inverse DFT for a given frequency image.

Syntax

Definition:

HRESULT InverseDft(
    HRESULT      hrPrev,
    ITcVnImage*  ipFrequencyImage,
    ITcVnImage*& ipSpatialImage,
    bool         bRealOutput
)

Parameters

Name

Type

Description

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

ipFrequencyImage

ITcVnImage*

Source frequency image (elements of type REAL or LREAL, 1 (packed CCS) or 2 (Re + Im) channels)

ipSpatialImage

ITcVnImage*&

Destination image (Same type as ipFrequencyImage, but number of channels can vary depending on bRealOutput. An appropriate image will be created if required.)

bRealOutput

bool

Only relevant if ipFrequencyImage has 2 channels. If true, the result image will have only 1 channel. Otherwise, the result image will have 2 separate channels (Re + Im). If ipFrequencyImage has only 1 channel, packed CCS format is assumed and the result image will always have only 1 channel.

InverseDft 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision