Color that is added to an image to call attention to details which aren’t readily perceptible or to create special effects.

Maximum number of standard logic inputs that the output of a digital circuit can drive reliably.

Fast Fourier Transform (FFT). A technique for calculating the frequency components in a time-domain waveform based on digitized voltage measurements. The result is a display of amplitude versus frequency and phase versus frequency.

The set of either the even or odd lines in a video image. The concept of a field is used when dealing with an interlaced video display.

An operation to selectively enhance or suppress the spatial frequency content of an image. Filters can be used to sharpen or smooth image details, or to extract edges from objects.

A program permanently record in ROM; therefore essentially a piece of the hardware that performs software functions. BIOS is an example of firmware.

Semiconductor sequential-access memory in which data words are read out in the same order in which they were written in.

Optimized for measuring peak amplitudes of discrete spectral components that are separated by several spectral lines. Recommended for use when your signal content consists of sine waves and amplitude accuracy is important.

Input signal that is left disconnected in a logic circuit.

Numbers that contain decimal parts or are presented in scientific notations (digits multiplied by a power of 10). Also known as "real" numbers. Integers are a subset of reals containing whole numbers only.