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Other Effects

Within the Effects pop-up menu, the category Other contains two effects: Convert to Alpha and Find Edges. The Find Edges effect allows you to change the color of pixels of an image. It uses the image’s pixels to etch lines where there are edges in the image. It can be a beautiful, neon-looking effect or an effect that looks more like an etching or engraving:

1.
Open the findedges.png file from the Effects folder (see Figure 7.16). This file contains a version of the original photo that I took of some people dancing in my friend Page’s nightclub.

Figure 7.16. The Find Edges effects. original find edges


2.
The image on the right, labeled Find Edges, is that same image as the original with the Find Edges filter applied to it.

3.
The last image, labeled Find Edges and Invert, is the find edges image with an additional effect applied to it, called Invert Effect. This effect reverses the colors in the image so that while the Find Edges effect created a neon-like version of the original, the Find Edges and Invert looks more like a line drawing or an etching.


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