What does 'True Colour' refer to in digital imaging?

True Colour refers to a system of representing images in digital form using 24 bits per pixel, which allows for the display of 16,777,216 different colors. This color depth is achieved by using 8 bits for each of the three primary colors: red, green, and blue. Each of these colors can have 256 different intensity levels, and when these are combined in various ways, they create a vast range of colors that closely approximates what the human eye can perceive.

This term is significant for digital imaging because it enables high-quality and vibrant representations of images, making it ideal for applications like photography, graphic design, and multimedia. The high fidelity in color reproduction is what differentiates True Colour systems from those with lower color depths, which would have limited color representation and could result in images that appear less realistic or visually appealing.