How many pixels are in a byte?
Each pixel typically consists of 8 bits (1 byte) for a Black and White (B&W) image or 24 bits (3 bytes) for a color image-- one byte each for Red, Green, and Blue. 8 bits represents 28 = 256 tonal levels (0-255).
A byte has only 8 bits. A bit is a binary digit. So a byte can hold 2 (binary) ^ 8 numbers ranging from 0 to 2^8-1 = 255. It's the same as asking why a 3 digit decimal number can represent values 0 through 999, which is answered in the same manner (10^3 - 1).
- How many values can be represented by a single byte? Computer only understands the sequence of 0s and 1s. One byte is equal to 8 bits and a collection of 8 bits can represent 256 messages ( ). Thus, a single byte can represent 256 values.
- The word “bit” long meant, in England, any coin of a low denomination. In early America, “bit” was used for some Spanish and Mexican coins that circulated and were worth one-eighth of a peso, or about 12 and one-half cents. Hence, two bits would have equaled about 25 cents.
- Binary is a mathematical number system: a way of counting. We have all learned to count using ten digits: 0-9. One probable reason is that we have ten fingers to represent numbers. The computer has switches to represent data and switches have only two states: ON and OFF.
8-bit color graphics is a method of storing image information in a computer's memory or in an image file, such that each pixel is represented by one 8-bit byte. The maximum number of colors that can be displayed at any one time is 256.
- When you scan in color, Colortrac wide format scanners scan in 48-bit color. This means that they capture trillions of colors. These trillions of colors are then reduced down to “the best” 16.7 million colors to create a 24-bit color image, or to 256 colors to create an 8-bit color image.
- Chiptune, also known as chip music or 8-bit music, is synthesized electronic music which is made for programmable sound generator (PSG) sound chips used in vintage computers, consoles, and arcade machines.
- Compact discs, the main method for music distribution, has digital audio that has a bit depth of 16 bits and a sample rate of 44.1 kHz. Tip: Never refer to 16-bit or 24 bit audio as the "bit rate". Its properly called the bit depth and the pros will be so irked they'll have to correct you.
The number of bits used to represent each pixel determines how many colors or shades of gray can be displayed. For example, in 8-bit color mode, the color monitor uses 8 bits for each pixel, making it possible to display 2 to the 8th power (256) different colors or shades of gray.
- 8-bit color graphics is a method of storing image information in a computer's memory or in an image file, such that each pixel is represented by one 8-bit byte. The maximum number of colors that can be displayed at any one time is 256. There are two forms of 8-bit color graphics.
- Each pixel on a computer screen is composed of three small dots of compounds called phosphors surrounded by a black mask. The phosphors emit light when struck by the electron beams produced by the electron guns at the rear of the tube. The three separate phosphors produce red, green, and blue light, respectively.
- The pixel (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image. Think of it as a logical - rather than a physical - unit. The physical size of a pixel depends on how you've set the resolution for the display screen.
Updated: 22nd September 2018