Photo Restoration: Removing Partial Staining

1. Start by inspecting the individual channels, to see if one is more damaged or more useful than the others.

2. Return to the composite channel.  Choose Select>Color Range and use the select pop-up menu to select Yellow and click OK, and click OK to the warning that the selection edges will not be visible.

3. Add a hue/saturation adjustment layer, which automatically transfers the active selection to the layer mask and reduce the saturation by 100.  Since the effect is applied through such a dense layer mask you may not see a lot of change.

4. Select the hue/Saturation layer.  From the layers palette menu, choose New Group from layers.  Name the group “yellow removal.”

5. Click on the hue/saturation layer and duplicate the hue/saturation layer with Ctrl-J until the yellow disappears.

6. Close the group to save space in the Layers palette and use Ctrl+Alt+Shift+E to merge all layers up to create a new working surface.

7. Choose Filter>Noise>Dust and Scratches, and use a Radius of 1 to cover up the remaining specks.

8. To reduce the contrast of the image, add a levels adjustment layer.  Increase the shadow output to 5 and decrease the highlight output to 250.