A non-profit organization in the Japanese city of Hiroshima is planning to mark the upcoming 60th anniversary of the city's atomic bombing with a photo exhibition that will draw on images contributed by Internet users from around the world.

NPO Cetra Hiroshima is hoping people will take part in the project by taking a photo at 8:15am local time on August 6 and sending it to them via the project Web site.

The time corresponds to the moment an atomic bomb was dropped on the city by US forces in 1945 - an act widely regarded as being instrumental in Japan's World War II surrender just over a week later.

After they are received the images will be projected onto a screen as the main event of an art exhibition that is being held at the former Bank of Japan building in the city. The building, less than 400 metres from the blast center, was left relatively intact thanks to sturdy construction and heavy steel shutters and so remains in use today.

Anyone wishing to take part in the project is asked to register on the Web site after which they'll receive information about how to submit pictures. Registration is available in English or Japanese.

The project grew from discussions about ways in which this year's anniversary could be marked, said Yoshimichi Ishimaru, vice president of NPO Cetra Hiroshima. As the group wondered about the city and what it looked like in the moments up to the bombing they also wondered about the different sights to be seen all around the world at the same moment 60 years on.