What is the term used to describe how many bits are used in each pixel?
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.
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).
- The largest number you can represent with 8 bits is 11111111, or 255 in decimal notation. Since 00000000 is the smallest, you can represent 256 things with a byte. (Remember, a bite is just a pattern. It can represent a letter or a shade of green.)
- 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.
- Computers use binary - the digits 0 and 1 - to store data. A binary digit, or bit, is the smallest unit of data in computing. It is represented by a 0 or a 1. Binary numbers are made up of binary digits (bits), eg the binary number 1001.
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.
Bits Per Pixel Number of Colors Available Common Name(s) 8 256 VGA 16 65536 XGA, High Color 24 16777216 SVGA, True Color 32 16777216 + Transparency
- The human eye can see 7,000,000 colors. Some of these are eyesores. Certain colors and color relationships can be eye irritants, cause headaches, and wreak havoc with human vision. Other colors and color combinations are soothing.
- 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.
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).
- Your art needs to be a 300 dpi (dots per inch) high-resolution jpg, tif, or eps file. An eps format is common for logos. You may submit an eps image. Do not submit a png image. A “dot” (also known as a “pixel”) describes the number of discrete points that can be captured by digital cameras.
- A file size is the measure of space a file takes on a storage medium such as a computer hard drive. File sizes can be measured in bytes (B), kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and beyond.
- Kilobyte (1024 Bytes)
- Megabyte (1024 Kilobytes)
- Gigabyte (1,024 Megabytes, or 1,048,576 Kilobytes)
- Terabyte (1,024 Gigabytes)
- Petabyte (1,024 Terabytes, or 1,048,576 Gigabytes)
- Exabyte (1,024 Petabytes)
- Zettabyte (1,024 Exabytes)
- Yottabyte (1,204 Zettabytes, or 1,208,925,819,614,629,174,706,176 bytes)
Updated: 4th December 2019