Ms. Anju Niwata, a university student from Hiroshima, Japan, is working on the “Rebooting Memories" project, using artificial intelligence (AI) technology to colorize black-and-white photographs of Hiroshima’s atomic bomb survivors.

Over the years, many atomic bomb survivors (hibakusha) have overcome hatred and sadness in hope that human beings should never repeat the same mistakes.

Through dialogue with survivors, researching past documentary records and the use of AI technology, Ms. Niwata carefully revives the monochrome photos as she spreads the hope of peace in a nuclear weapons-free world.

The UN Secretary-General warned that a new arms race is picking up speed and world leaders are enhancing stockpiles at a cost of hundreds of billions of dollars with almost 13,000 nuclear weapons currently held in arsenals around the world. “Nuclear weapons are nonsense.

Three-quarters of a century later, we must ask what we’ve learned from the mushroom cloud that swelled above this city in 1945”, he urged during the solemn event at Hiroshima Peace Memorial Park attended by dozens of people, including hibakusha, young peace activists, Japan’s Prime Minister and other local authorities.