Laplace Filter

Block Category: Detection

Input Image Format

Input Image Requirements: None

Description: The Laplace Filter block applies Laplacian filtering on an image to create an image gradient, typically to detect edges. When the image is read into the Laplace Filter, it is automatically converted to gray scale and a Gaussian blur is applied to reduce noise sensitivity.

K Size: Specifies the aperture size used to compute the second derivative filter. The value must be odd and positive. The default is 1.

Scale: Specifies the scale factor for the computed Laplacian values. The default is 1.


In this example, the kernel size is 3 and the scale is 2.