ResizeImage

Resize an image using a specific interpolation type while maintaining its aspect ratio.
Can use available TwinCAT Job Tasks for executing parallel code regions.
Can return partial results when canceled by Watchdog.

Syntax

Definition:

HRESULT ResizeImage(
    HRESULT                hrPrev,
    ITcVnImage*            ipSrcImage,
    ITcVnImage*&           ipDestImage,
    ULONG                  nWidth,
    ULONG                  nHeight,
    ETcVnInterpolationType eInterpolationType,
    ETcVnPaddingMode       ePaddingMode = PM_NONE,
    TcVnVector4_LREAL&     aBorderValue = {0, 0, 0, 0}
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

ipSrcImage

ITcVnImage*

 

Source image

ipDestImage

ITcVnImage*&

 

Destination image (An appropriate image will be created if required.)

nWidth

ULONG

 

New width

nHeight

ULONG

 

New height

eInterpolationType

ETcVnInterpolationType

 

Interpolation type

ePaddingMode

ETcVnPaddingMode

PM_NONE

Image padding mode

aBorderValue

TcVnVector4_LREAL&

{0, 0, 0, 0}

Border value, if TCVN_PM_LETTERBOX is used

ResizeImage 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1.4024.59 or later

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

Tc3_Vision