HaralickFeatures

Computes the Haralick features of a graylevel image, which describe the texture.

Syntax

Definition:

HRESULT HaralickFeatures(
    HRESULT          hrPrev,
    ITcVnImage*      ipImage,
    ITcVnContainer*& ipFeatures,
    ULONG            nDist
)

Parameters

Name

Type

Description

hrPrev

HRESULT

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

ipImage

ITcVnImage*

Source image (1 channel, USINT)

ipFeatures

ITcVnContainer*&

Returns the computed Haralick features (CTcVnContainer_Vector_LREAL). The returned feature set contains the mean and standard deviation for each of the first 13 Haralick features, computed for 0, 45, 90, 135 degrees. So there will be 26 features in total (f1 mean, f1 stdDev, f2 mean, f2 stdDev, ..., f13 mean, f13 stdDev).

nDist

ULONG

Distance

HaralickFeatures 1: Return value

HRESULT

Required License

TC3 Vision Machine Learning

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1.4024.54 or later

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

Tc3_Vision