LaplaceFilter

The LaplaceFilter block applies Laplacian filtering on an image to create an image gradient.

    LaplaceFilter

Library

ComputerVision/Images/Filters

Description

The LaplaceFilter is typically used to detect edges.

Parameters

LaplaceFilter_0

NameLabelDescriptionData TypeValid Values

ksize

Kernel Size

Specifies the aperture size used to compute the second derivative filter.

The value must be odd and positive. The default is 1.

Scalar

scale

Scale

Specifies the scale factor for the computed Laplacian values.

The default is 1.

Scalar

externalActivation

External activation

This parameter defines if the block receives or inherits an external activation. When External Activation is used, an additional activation port is added to the block. Default is OFF.

Number

0
1

Ports

NameTypeDescriptionIO TypeNumber

src

explicit

input

1

image

explicit

output

1

Port 3

activation

input

externalActivation