Camera companies are trying to fight against the increase of AI-made pictures by adding digital signatures to photos.

Nikon is planning to sell mirrorless cameras equipped with security tech for professional image-takers like photojournalists. The tech will use tamper-proof digital signatures with details like the date, time and place of the photo. This was shared by the Nikkei Asia news site.

A group of newspapers, camera makers and technology firms have made a free online tool called Verify. This helps to see if pictures are real or fake. If a picture has a digital signature, the website will show when and where it was created along with other important details.

Nikon, Sony and Canon have used the security technology. Sony wants to add more camera types that work with it and ask others to do the same. This year, they will add digital signatures to their professional-grade mirrorless cameras using a software update. Canon intends to launch a camera equipped with the technology as soon as next year. In October, Sony and the Associated Press tried out this technology.

Some businesses are looking for ways to spot images made by AI technology. They also check if these photos are real or not. Last year, Intel made a way to find out if an image was real by studying skin colour changes. In August, Google came out with a tool to put hidden marks on AI-made pictures.

People are using more AI-made pictures, making it difficult to tell if they're real or not. This year, a free AI image-determining app incorrectly labelled an infant's photo - killed in Hamas's recent attack against Israel as being created by artificial intelligence. But it appears to be real.