Kuai Technology News on June 25, At the just-concluded Shanghai Film Festival, " Swordsman " was selected into the "Salute to the Master" unit , " Blood Heroes ", "a Project " and " Wu" No. 1 Su Qier " was selected into the "4k Restoration" unit.
These films were restored by the "Classic Hong Kong Film Restoration Project" jointly launched by the China Film Archive, Douyin, and Huoshan Engine.
Douyin posted that a young viewer said after watching the 4k restored version of "The Swordsman" that the viewing effect after the 4k restoration was close to the new film , "While watching it, I completely forgot that this was a restored version. It has the same visual effect as other new films from the Shanghai Film Festival that I watched two days ago."
Another viewer said: "(The 4K restored old Hong Kong film) the details of the picture are very real, such as every micro-expression of the characters is very obvious, the color ratio is not exaggerated like some restored films, it still feels like watching an old film "
It is understood that "The Swordsman" was filmed around 1990. Compared with earlier movies, there are not many flaws in the picture. The most difficult thing is how to "restore the old look" in terms of color. The team of
restorers compared many films of the same era and repeatedly adjusted the unique period colors of Hong Kong films. They also invited the film's creators to enter the restoration room for guidance, striving to make the restoration effect consistent with the subjective aesthetics and the creator's emotional intention.
On the other hand, the Volcano Engine technical team designed a color correction solution that combines aesthetic standards. This deep learning solution first performs scene segmentation on the video, and then learns the color correction matrix of each scene key frame to obtain stable correction results. At the same time, in order to maintain the texture of the film,
also developed an adaptive texture enhancement scheme, using algorithms to simulate the generation of film grains.
