8.2.  Apply Lens

8.2.1.  Overview

Figure 11.53.  The same image, before and after applying lens effect.

The same image, before and after applying lens effect.
The same image, before and after applying lens effect.

You can find this filter via the image menu under Filters->Glass effects->Apply Lens

After applying this filter, a part of the image is rendered as through a spherical lens.

8.2.2.  Options

Figure 11.54.  Apply Lens” filter options

Apply Lens filter options
Preview

Parameter setting results are interactively displayed in preview. Scroll bars allow you to move around the image.

Parameter settings

  • Keep original surrounding: The lens seems to be put on the image.

  • Set surroundings to Background color: The part of the image outside the lens will have the Background color selected in Toolbox. This can be a transparent background.

  • Lens Refraction Index: Lens will be more or less convergent (1-100).