Colour space

When it comes to an image that is greyscale, it will only include the colours, grey, black and white, with the intensity of the black being the weakest and the colour white being the strongest. The difference between a binary image and a greyscale image is that there is no colour grey in a monochrome image. Even though greyscale includes one more colour, it is still used for copiers and printers.

When the colours red, blue and green are mixed they create a range of hues that “will be able to make any colour” (07268grum.wordpress.com.) Being a colour model, the RGB will be used on digital screens so that when a certain colour is required, it will be easy to deliver to the viewer.

The model that defines colour space is YUV with chrominance (UV), which is the colour component of the model, whereas the (Y) luminance determines the brightness. The purpose of YUV is to “encode” graphics such as images and videos of colour, in order to cover up errors, so that the user isn't aware. This would be used for TV’s so that the viewers wouldn't be able to pick up on any accidental errors, making this more beneficial to use for the broadcasting company as the problems won’t be visible to the viewers.

Originating from the RGB colour space, HSV (Hue, Saturation and Value) and all of them apply different inputs, for example, value is the brightness of the colour. The saturation determines the pureness or sharpness of the colour whereas, hue determines the shade of a colour, and these factors are able to be changed as they are mostly used in editing software, making it easier for the user to select the specific colour they desire.