Number of bits assigned to represent grey level, or luminance and chrominance, information in a single pixel. Indirectly, the number of different discrete levels that represent the variations of such information. For example, 8 bits per pixel can yield 256 distinct grey levels.
Sometimes referred to as colour depth, the number of bits per pixel defines the maximum colour variations available for each pixel that appears onscreen. 8- bit colour allows 256 individual colours. 16-bit colour allows 65,536 colours, and so on.
A number representing the amount of color information of a pixel.
The number of bits used to represent the color or intensity of each pixel in a bitmap. One bit allows only two values (black and white), two bits allows four values, and so on. Also called color depth or bit depth.
The number of bits used to represent the color value of each pixel in a digitized image.
8-bit color uses 8 bits to describe the intensity of each color channel. If a pixel is composed of Red, Green and Blue (RGB) with 8 bits per color (3 color channels), you have 24-bit color. 16 bits per color channel results in 48-bit color (again, for a pixel with 3 color channels).
The number of bits used to represent a pixel’s color. A single bit per pixel only permits 21, or 2 colors (black and white); 24 bits per pixel allow for 224, or 16,777,216 colors.