The restoration of old photos depends on the degree of damage. If it is not too serious, it can be repaired by brushing, imitating stamps, and partially coloring. If the damage is too serious, it can only be repaired by hand drawing, provided that there is a painting foundation.

Common skills of portrait thinning: face-lifting, slimming, Gaussian blur, hyperbola, medium gray level and skin color adjustment. In Lightroom, PSCC and Camera RAW, the exposure should be adjusted first, and important photos should be taken with semi-exposure because more details can be preserved.

It can be brightened in the later stage of filming, and it is basically impossible to get it back in the later stage of filming. Then brighten shadows and black, add details and reduce skin light, so that the skin looks softer and more tender. A slight increase in red saturation can make the skin more transparent and healthier.