PPI stands for pixels per inch, commonly used in describing the resolution capabilities of an imaging device such as a scanner or the resolution of a digital image. The terms DPI (dots per inch) and P [..]

The number of bits that are conveyed or processed per unit of time, most often (but not exclusively) employed when discussing time-based media like sound or video. Often expressed in terms of kilobits [..]

An application or algorithm that encodes data, often used for data compression. A decoder is used to play the data, which often entails decompression.…

The visible "steps" of edges or lines around a pixel in a digital image, and is most notable in areas of high contrast. Anti- aliasing can reduce the visibility of the jagged features.…

A radiometric reference point used to calibrate or define the maximum luminance value of interest in a scene or object.…

See A-to-D converter

See Derivative file

The degree to which the information correctly describes the object or process being measured. It can be thought of in terms of how close a reading or average of readings is to a true or target value. [..]

Light perceived as having no hue, this includes the shades of neutral gray from white to black.…

An objective SFR-derived metric weighted by the Contrast Sensitivity Function (CSF) used to predict the subjective impression of sharpness.…