How to Correctly Use Colourized vs. Colourised vs. Colorized vs. Colorised in a Sentence
"Colourized" or "Colourised" or "Colorized" refers to the process of adding color to black-and-white photographs or images. "Colorised" is not a standard English term.
"Colourized" and "Colourised" is the British spelling. "Colorized" is the standard American English spelling.