User Guide

GNU Image Manipulation Program
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15.8.2.2 Options
Figure 15.111: ‘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.
• Make Surroundings Transparent: The part of the image outside the lens will be transparent.
• Lens Refraction Index: Lens will be more or less convergent (1-100).
15.8.3 Glass Tile
15.8.3.1 Overview
Figure 15.112: The same image, before and after applying glass tile effect.
(a) Original image (b) Filter Glass Tile applied
You can find this filter through Filters → Glass effects → Glass Tile
After applying this filter, the active layer or selection is rendered as through a glass brick wall.