Is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component of a single pixel. [Digital Imaging Terminology]

Is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component of a single pixel.

The above define Bit depth

Explanation:

Bit depth refers to the color information stored in an image. The higher the bit depth of an image, the more colors it can store. The simplest image, a 1 bit image, can only show two colors, black and white.Bit depth refers to the color information stored in an image. The higher the bit depth of an image, the more colors it can store. An 8 bit image can store 256 possible colors, while a 24 bit image can display over 16 million colors.For consumer/end-user applications, a bit depth of 16 bits is perfectly fine. For professional use a bit depth of 24 bits is better. This ensures a good dynamic range and better precision when editing.The number of bits used to represent each pixel in an image. A grayscale scanner would generally be 1 bit for monochrome or 8 bit for grayscale (producing 256 shades of gray). Bit depth is also referred to as color depth.