5.4. Engrave

5.4. Engrave
	5. Distort Filters

5.4.1. Overview

Figure 17.52. Example for the “Engrave” filter

Original image

“Engrave” applied

This filter produces an engraving effect: the image is turned black and white and some horizontal lines of varying height are drawn depending on the value of underlying pixels. The resulting effect reminds of engravings found in coins and old book illustrations.

	Note
	The “Engrave” filter operates only on floating selections and layers with an alpha channel. If the active layer does not have an alpha channel please add it first.

5.4.2. Activating the filter

This filter is found in the image window menu under Filters → Distorts → Engrave….

5.4.3. Options

Figure 17.53. “Engrave” options

Presets, Preview, Split view

	Note
	These options are described in Section 2, “Common Features”.

Height

This option specifies the height of the engraving lines. The value goes from 2 to 16.

Limit line width

If this option is enabled thin lines are not drawn on contiguous color areas. See the figure below for an example of this option result.

Figure 17.54. Example result of Limit line width option

Original image

Limit line width option enabled

Limit line width option disabled

Clipping

The result of this filter can be larger than the original image. With the default Adjust option, the layer will be automatically resized as necessary when the filter is applied. With the Clip option the result will be clipped to the layer boundary.