Global Wedding Traditions: Japanese Wedding Ceremony (BridesMagazine.co.uk)
Bride and Groom in traditional wedding clothing, Japan. However, I can't say the white is probably very traditional. I assume that it is adopted from Western trends, since white, unlike black, is the color of dispair and death in most Asian cultures.
Asia | Portrait of a Japanesr bride and groom, Japan #wedding
Japanese traditional wedding kimono
Shiromuku (wedding uchikake, kimono and accessories) - for traditional Shinto weddings in Japan.