This photo combination shows digital colorization process by Anju Niwata and Hidenori Watanave, left, and original black and white image that Hiroshima resident Hisashi Takahashi and his parents, grandmother and younger brother pose for a photograph in a flower bed of dandelions. The photo was taken around 1935. The original black and white photo is at top right. The second photo, bottom right, shows the colors after AI automatic colorization. The authors initially determined that the flowers in the foreground were white clovers, and adjusted colors of the flower bed accordingly in the third photo, bottom left. After interviewing the photo owner Takahashi, the flowers were found to be dandelions instead of white clovers, and was recolored yellow at top left. Niwata and Watanave call the process "rebooting memories," whereby colorized photographs revives memories that may otherwise be lost. (Hisashi Takahashi/Anju Niwata & Hidenori Watanave via AP)