Image processing of aerial photographs taken by the U.S. military before and after the atomic bombing of Nagasaki (Part 1)

During World War II, a photo reconnaissance plane named the F-13, a modified American military strategic bomber B-29, collected information to drop atomic bombs on Hiroshima and Nagasaki. This plane was known as the "3RPS" characters on photographic film. It means that the 3rd Photo Reconnaissance Squadron. This presentation included the state of the National Archives in the United States, where we can see and touch on the contents of the photographs by American photo reconnaissance aircraft. In addition, we reported the contents of the research to improve image quality processing. In particular, this document explains the contents of processing a total of 58 digital data (August 7 and September 7, 1945) before and after the atomic bombing of Nagasaki. Open data will be found "https://nagasaki-genbaku.reearth.io".