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IMAGING GLOSSARY

Pixel (imaging)

An abbreviated version of the term PIcture (X) ELement.

This is the most fundamental element of a digital image. A digital image is made up of rows and columns of points of light. Each indivisible point of light is a pixel.

Each pixel in an image is addressed by its column (x) and its row (y) usually written as the coordinate pair (x, y).

An 8-bit pixel can take on one of 256 values. A 24-bit pixel has 3, 8-bit components for each of the primary colors, red, green, and blue.

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Imaging Categories:

Acquisition
Display
Transformations
Image Processing
Color Processing
Recognition
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