Creative Use of Color - Beginning Photo Retouching and Restoration Using GIMP - page 128

Figure 5-21. Painting with various grays on the layer mask to reveal subtle colors
The end result is an image with a quaint, vintage look (Figure 5-22 ). You can vary the results by painting
on the layer mask with black (which will reveal full color), various grays, and white (which will completely
mask the colors).
Figure 5-22. Before and after results