High-definition Stone Mosaics by Exactmosaics


San Francisco mosaic studio Exactmosaics creates high-definition mosaics using pattern recognition software to select pieces of natural stone.

Nick Berg and Alan Roth developed the software to scan millions of marble tiles, selecting the optimal pieces to reproduce a certain image and work out the placing and orientation of each piece.

The tiles are then arranged and set by hand using traditional mosaic-making techniques, to create a more detailed image than is otherwise possible.

The following information is from Exactmosaics:


Exactmosaics, a studio in San Francisco, is making stone mosaics by using pattern recognition software to line-up the striations within millions of marble pieces.

Exactmosaics introduced high-definition stone mosaics created by using the natural marbling within stone. By using the natural striations and veining within the stone, the company's mosaics achieve greater detail per stone than the commonly seen "pixel tile mosaics".

Nick Berg and Alan Roth founded the studio in 2006 after they discovered ways to apply modern artificial intelligence software to the ancient art of mosaic making. They create these mosaics by photographing millions of tiles that are made from natural materials. Next, Berg and Roth evaluate the shape, texture, and colours within each tile using proprietary technology. Finally, each stone piece is individually selected and hand-placed to compose the larger image.

Co-founder, Alan Roth claims that the mosaics are another example of technology allowing designers to transcend human limitations. "Ancient mosaic artists could not have achieved the visual detail of an Exactmosaic piece because they faced human limitations in memory capacity", says Roth. "In fact, a mosaic artist in ancient Rome would have needed perfect visual recall of several thousand stones to render the same level of detail."

Exactmosaics will be a first time exhibitor at SURFACES 2008, a major convention for the floor covering industry with annual attendance of over 40,000 retailers, builders, architects, and designers. The exhibition will be at the Sands Convention Center in Las Vegas, NV from January 30th to February 1st 2008. Exactmosaics will be displaying its latest mosaics, including a breathtaking large-scale mosaic of the San Francisco skyline.

The Society of American Mosaic Artists selected artwork by Nick Berg and Alan Roth (Co-founders of Exactmosaics) for inclusion in the 2008 Mosaic Arts International Juried Exhibition. This year, SAMA received entries from 180 artists. Exactmosaics' "Lotus Green Flower" was one of only 64 mosaics that the jury selected for inclusion in the show. The show will be held at the Bakehouse Art Complex in Miami, FL from April 3 to April 30, 2008.


Posted by Rose Etherington

Posted on Sunday January 13th 2008 at 10:35 am by . Copyright policy | Comments policy

  • rtet

    look like Photoshop filter…….. pretty nice

  • Quite ugly (well, it’s hard to do really nice figurative mosaic) but impressive technology.

  • Trent C.

    I think these mosaics are beautiful – what an amazing blend of art and technology.

  • I can’t wait to see one of these pieces at the Society of American Mosaic Artists Conference this year in Miami! I too at first thought these were digital and was kinda bummed, but after looking closely, I realized it is real material. Beautiful work!!! Like Trent said, a blend of art and technology.

  • Braxton Williams

    Truly incredible, but somehow lacks the artistic life of the ancient Roman mosaics. It’s instantaneously recogniseable as a computer generated work of art. I’d love to see the ancient style inputed into the computer so that such works could be available to the average person.

  • It’s good to see that another company is interested in the melding of Mosaic Art and technology. It’s quite hard to find a good balance between the two. Though Computer generated mosaic will always be somewhat of a different art form than traditional hand-cut mosaic.

  • Milovan

    It lacks the soul. Such a creation (it is not art) does not possess elements that could create any kind of emotions. Same size and uniform placement of the mosaic elements is closer to a computer chip than to an artist imagination and creativity. The creation of a mosaic with technology is more compatible to dot matrix printing than to real art.