A 'late color image' could refer to an image that has been processed or colored in a way that adds color to black and white or monochromatic photographs, usually after they have been taken. This technique was popularized in the late 19th and early 20th centuries. It involves the use of dyes or inks to apply color to the image, which can enhance the visual appeal and storytelling of the photograph. Today, it can also be achieved digitally, allowing for a variety of creative effects.