Todd sent me this very old and tired photo for restoration. It had suffered some severe mould damage and needed a good cleanup in Photoshop . The mould shows itself as light and dark patches. But because there are so many we can't use the spot removal or the healing brush in the normal way. If you do then the light and dark patches are 'merged' and they become neither, ending up is a mid-tone grey. What was needed was to pick an area and decide if the surrounding blotches needed to be made lighter or darker to match the good areas. Then using the healing tool set to either 'lighten' or 'darken' mode I was able to match the damaged area with good areas, without merging the two and making everything muddy and grey. The results are very good and the faces became much more visible and the whole photo looks very presentable.
Richard at Pixelfix did the impossible by taking an old family photo from the late 1800s that was suffering from significant mould damage and fading. I didn't think he would be able to do much with it, but I was wrong. Thanks Richard for breathing new life into a cherished family portrait.