Dithering is a digital imaging technique used to create the illusion of smoother tones and gradients in an image by strategically adding or mixing pixels of different colours. This process helps reduce the appearance of banding or abrupt transitions in areas of subtle colour change.
In digital photography and graphic design, dithering is especially useful when working with images that have a limited colour palette, such as GIFs or low-bit displays. By carefully distributing pixels, dithering improves visual quality, making images appear more continuous and natural to the human eye.