What is Photo Mosaic? (Wikipedia)

In the field of photographic imaging, a photomosaic is a picture (usually a photograph ) that has been divided into (usually equal sized) rectangular sections, each of which is replaced with another photograph of appropriate average colour. When viewed at low magnifications, the individual pixels appear as the primary image, while close examination reveals that the image is in fact made up of many hundreds or thousands of smaller images. Photomosaics are a computer created type of montage . The word photomosaic is a portmanteau of photo and mosaic .

Examples (Generated by Image Mosaic Plug-In for the GIMP)

Original Photo Mosaic

Software

Mosaic Creator

PhotoMontage

Links

Detail Definition in Wikipedia

Comparison of Photo Mosaic Software