1. to add color to (a black-and-white film, photograph, or video) using digital or chemical techniques
Usage: also spelled 'colorize' in U.S. English; commonly used in film and media production

Examples

• The studio decided to colourize the classic 1940s film for modern audiences.
• Technicians colourized the old black-and-white photographs to bring them to life.
• Many film purists argue against colourizing historical movies.
• The restoration team carefully colourized each frame of the vintage documentary.
• Digital software now makes it easier to colourize archival footage.
• She spent months colourizing her grandmother's old family photographs.