Color Correction and Restoration - Beginning Photo Retouching and Restoration Using GIMP - page 87

Figure 4-13. Before and after comparison
Tutorial 10: Correcting a Color Cast (No. 2)
This image, taken in the 1980s (Figure 4-14 ), has a mild color cast. We'll use a “quick fix” method here, which
is the Levels auto-setting. I'm generally not a fan of “auto” methods, but they do sometimes have their place
and are worth trying before moving on to more complex manual correction methods.