värvipikseli

Värvipikseli, or color pixel, refers to the smallest addressable element in a raster image or on a display screen. It is the fundamental unit that makes up a digital image. Each color pixel possesses specific color information, which is typically represented by a combination of primary colors. In most modern display systems and image formats, this color information is encoded using the RGB (Red, Green, Blue) color model. For each of these primary colors, a certain intensity value is assigned, which together determine the final perceived color of the pixel.

The number of bits used to represent the color of a pixel is known as the color depth or bit depth. A higher color depth allows for a wider range of colors and smoother gradations, reducing the appearance of banding. For example, an 8-bit per channel system (24-bit color) can display over 16 million distinct colors, while a 10-bit per channel system (30-bit color) offers even more. The arrangement and combination of millions of these individual color pixels on a screen create the full image that a viewer sees. When discussing image resolution, the number of pixels horizontally and vertically is often mentioned, such as 1920x1080, indicating the total number of color pixels that form the image.