Researchers have created a new artificial intelligence (AI) -based photo coloring tool called Time-Travel Rephotography. It uses the skin’s reaction to light to produce realistic results.
Scientists used a photo coloring tool to recreate photographs of Franz Kafka, Marie Curie, Thomas Edison, and Mahatma Gandhi.
Abraham Lincoln’s famous black and white photographs are considered dirty, noisy, and have a shallow depth of field that only focuses on parts of his portrait.
Most black and white films prior to 1907 were orthochromatic or sensitive to all visible light except warm colors such as red.
Light is reflected on human skin, although some of it may penetrate the surface and illuminate the skin from the inside, making wrinkles and other physical features less visible.
However, the effects of subsurface scattering are not captured by the orthochromatic film.
Experts have tried coloring techniques for old black and white photographs before. However, they did not consider what was happening with the old stock of film. Yes, technicians can remove graininess, enhance, sharpen, and colorize images. But these photos do not reproduce the natural light softening effects on the skin that were not captured by older cameras.
Old photographs show a faded monochromatic world due to the limited capabilities of old cameras. But the new colorization tool goes back to the past and makes up for poor image quality with AI.
The researchers used the NVIDIA StyleGen2 artificial intelligence system, trained using modern digital portraits that match the historical figure due to their rather similar appearance. The scientists then projected old photographs into the space of modern images using an artificial intelligence system to create ultra-realistic modern photographs of historical figures.