Editing Portraits and Recomposing Images - Beginning Photo Retouching and Restoration Using GIMP - page 207

Figure 8-27. For this tutorial, the background layer will be duplicated twice

3. Add a transparency (in the form of an alpha channel) to the Edit Layer

(Image Menu ➤ Layer ➤ Transparency ➤ Add Alpha Channel).

4. Open the Threshold dialog (Image Menu ➤ Colors ➤ Threshold). Leave the

slider at the default setting (Figure 8-28 ).