Sobel's filter detects horizontal and vertical edges separately on a scaled image. Color images are turned into RGB scaled images. As with the Laplace filter, the result is a transparent image with black lines and some rest of colors.
![]() |
Nota |
---|---|
Queste opzioni sono descritte in Sezione 2, «Caratteristiche comuni». |
Renders near horizontal edges.
Renders near vertical edges.
This option allows you to set how the filter will work if you have selected one direction for use only: a flat relief with bumps and hollows will be created.