"Colourise" Natural Recordings by Native Speakers
To colourise means to add color to an image or a black and white photograph, typically through a process of digital manipulation. It is often used in the context of film and video restoration, where the original black and white sequences are recolored to match the intended colors of the film's creators.
Colourimetric refers to the process or method of determining the concentration of a substance or a chemical compound by measuring its colour intensity or absorption, typically using a spectrophotometer. In other words, it is a technique used to quantify the amount of a substance present in a sample based on its colour change or absorption spectrum.