Is it darkroom treatment in the later stage?

Post-processing of photographic angle?

As mentioned above, post-processing has been produced since the day photography was invented, but in the era of film cameras, all post-processing was done in a darkroom, and great importance was attached to post-processing in order to control the effect of photos completely according to one's own intentions.

Many photographers are personally engaged in darkroom work, such as changing the composition of photos by re-cutting films, using different developers and exposure time to show different colors and exposure effects, or using different photographic paper to change the texture of photos. "