#1 Photographer Per Elis Edhlund With His Daughter, Tyra Edhlund, Photographed In C. 1910

#2 Albert Einstein And Charlie Chaplin Attend The Premiere Of Chaplin's Latest Film "City Lights" In Los Angeles, United States On The 2 February 1931

#3 Members Of The Bethune-Cookman College Football Team. Photograph Taken In Daytona Beach, Florida, United States In January 1943

Turns out colorizing old photographs is a much older art than most people realize, and it did not start with a computer. Back in the 1840s, when daguerreotypes and tintypes were the only game in town, studio artists were already dabbing tiny brushes loaded with powdered pigments onto portraits, adding a pink flush to cheeks or a soft blue to a dress.
This was known as hand coloring and it was widespread before color film ever existed. For families who wanted something more lifelike than gray tones, this was often the only option available, and it stayed popular well into the twentieth century through photo studios that offered hand tinted portraits as a standard service.
#5 Piazza Maggiore In Bologna, Italy On Christmas Day 25 December 1950

#6 Three People Playfully Posing For A Photograph In Front Of Villa Solhem In Helsinki, Finland In 1917

That approach eventually evolved into oil based tinting, where colorists used transparent dyes on glossy prints, then it evolved again once digital tools entered the picture. When Photoshop showed up in 1991, artists realized the same layering logic from analog tinting could be recreated with color layers, brushes, and adjustments like hue and saturation.
#7 5ft 8in (1.73m) Showman Pete Collins (Left) Walking Alongside 7ft 9.5in (2.37m) Albert Johan Kramer (Center) And Kramer's Brother-In-Law 3ft 6in (1.07m) Josef Fassler (Right) In London, England In C. 1935

#8 French Aviator Roland Garros Photographed Standing In Front Of A Demoiselle Airplane In 1910

#9 Here Charlie Chaplin Is Photographed With Winston Churchill On The Set Of The Film “City Lights” In The United States On The 24 September 1929

Suddenly a colorist could tweak an image endlessly without ruining the original print. This digital shift made the whole process faster and far more forgiving, though it still relied entirely on a human eye and a whole lot of patience. The real game changer showed up more recently, and it came from artificial intelligence rather than an artist's steady hand.
#10 An Ostrich Jockey On The Streets Of Brussels, Belgium Photographed In 1933

#11 A Street Car Conductor Not Allowing Passengers Aboard Without Wearing A Mask During The Spanish Flu Pandemic. Photograph Taken In Seattle, Washington, USA In 1918

#12 Veteran Of The American Revolutionary War, Jonathan Smith. He Fought In The Battle Of Long Island Which Took Place In August 1776

Neural networks trained on millions of color photographs learned to recognize patterns the same way a person would, picking out skin, foliage, fabric, sky, and countless other textures, then predicting what colors those elements probably had.
#13 People Looking Out From The Crown Of The Statue Of Liberty Photographed By Margaret Bourke-White From A Helicopter In 1952

#14 A Woman Driving A Sports Car Around Hollywood, Los Angeles, California With Thor The Great Dane Riding In The Passenger Seat. Photographed In 1961 By Ralph Crane

#15 Sergeant Franklin Williams, Home On Leave From Army Duty, With His Girlfriend Ellen Hardin, Sharing An Ice Cream, Photographed By Arthur Rothstein In Baltimore, Maryland In March 1942

In simple terms, one part of the system tries to add believable color while another part critiques the result, and the two go back and forth until the output looks convincing. It is a strange little rivalry happening entirely inside a computer, and it is responsible for a lot of the colorized photos floating around the internet today.
#16 Children In Paris, France Waving A French, American, And Union Flag To Celebrate The Signing Of The Armistice Marking An End To The First World War. Photograph Taken On 11 November 1918

#17 A Boy Watches Television Through The Window Of An Appliance Store In Erie, Pennsylvania In 1948

#18 People Crowded Around A Screen Set Up On The Streets Showing The Mickey Mouse Cartoon "The Barnyard Battle" In London, England On The 26 February 1931

Here is the part that might surprise you though. Even with all that computing power, AI colorization is still mostly educated guesswork. A neural network has no idea what color a specific soldier's uniform actually was or what shade of red a particular vintage car came in. It only knows what colors tend to show up in similar looking objects across its training data.
#19 Photograph Of People Walking On The Street Tweede Weteringplantsoen In Amsterdam, The Netherlands In 1902

#20 Two Sami Men Steering A Small Boat On The Lake Stora Lulevatten In Northern Sweden. Photograph Taken By Anders Beer Wilse In 1916





