Color Correction and Restoration - Beginning Photo Retouching and Restoration Using GIMP - page 109

13. Select the Blue color channel and move the black point slider to the right, until

the value is about 30. Move the white point slider to the left, until the value is
about 218. The midpoint slider should be set to around 1.17 (Figure 4-52 ).

Figure 4-52. Adjusting the levels in the Blue channel

14. Create a new layer and name it Background Color. Set the blend mode to Color .

15. Using the Color Picker tool, sample some blue from the background in the

image's upper right-hand corner. Paint on the Background Color layer, to replace
some of the blue that faded out (Figure 4-53 ).

Figure 4-53. Replacing the blue in the background