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image process Dictionary Terms

array processor
In image processing, a specially designed programmable computer peripheral that attaches to the host system for the purpose...
masking
In image processing, the assigning of certain portions (or pixels) of an image a constant value of either 0 (black) or 1...
buffer
1. In fiber optics, a protective material applied as an optical fiber cover that has no optical function. 2. In image...
lens testing equipment
Lens testing equipment refers to a range of specialized tools and instruments used to evaluate the optical performance,...
word
In digital image processing, a unit equal to 16 bits.
median filtering
In image processing, a method of local smoothing by replacing each pixel with the median gray level of neighboring pixels.
Camera Link HS
Camera Link HS (high speed) is a standard developed for high-speed digital data transmission in machine vision and...
raster image processor
In imaging technology, a device that converts raster or line-scan data to pixel form for further processing.
feature extraction
In image processing and machine vision, the process in which an initial measurement pattern or some subsequence of...
machine vision system
A machine vision system is an integrated combination of hardware and software components designed to capture, process, and...
image restoration
Filtering procedures aimed at estimating the original image by removing the blurring and noise suppression that occur during...
enhanced graphic adaptor
An image processing device that displays pseudocolor images by assigning colors to the gray scales according to look-up...
light frame
The term for an image captured by a detector and from which a dark frame, bias frame and/or flat-field frame can be...
posterization
In image processing, the effect caused by large jumps between gray levels, rather than a gradual change.
pixel group processing
In digital image processing, a subcategory of frame processing that treats each pixel in terms of its relationship to...
video-intensified microscopy
The observation of specimens by a microscope linked to a television camera and an image processor.
digital image processing
The technique by which an analog image is converted by any of several means into a finite array of points, each represented...
aliasing
In image processing, the result of a sampling frequency that is too slow to preserve the spatial frequencies of the image....
CMOS camera
A CMOS camera refers to an imaging device that employs a complementary metal-oxide-semiconductor (CMOS) image sensor to...
stitching
The process of creating a large, panoramic image by aligning and joining a set of smaller images. Image processing is used...
edge detection
In image processing, the location of edges by employing templates that respond to the first or second derivative of...
gradient
In image processing and machine vision, the rate of change of pixel intensity.
antialiasing
In image processing, methods of reducing image defects that result from false data. Techniques include sampling, linear...
low-pass filter
In digital image processing, a method of convolution that reduces random noise by replacing the value of each pixel with the...
pipeline
In image processing and elsewhere, generally an adjective to describe an assembly-line arrangement for performing a task....
frequency domain
The frequency domain is a concept used in signal processing and analysis to represent signals and data in terms of their...
geometric operations
In image processing, mathematical operations that change spatial geometry, as for instance scaling, translating, rotating or...
opening
In morphological image processing, a series of erosions followed by the same number of dilations.
brightness resolution
The degree to which a pixel in a digital image represents the analog brightness of the corresponding point in the original...
digital camera
A digital camera is a device that captures and records still images or video in digital format. Unlike traditional film...
region-of-interest processing
Image processing operations performed on one area of an image.
image processor
A device embodying a microprocessor that converts an image to digital form and then further enhances the image to prepare it...
morphology
In image processing, the study of structure or form of objects in an image.
deep learning
Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex...
CoaXPress
CoaXPress (CoaXPress or CXP) is a standardized digital interface and communication protocol used primarily in machine vision...
CCD camera
A CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and...
mapping function
In image processing, the mathematical relationships that link pixel brightnesses of input images to those of output images...
quantizer
A device with a limited number of possible output values (sometimes able to be selected) that can translate an incoming...
pseudocolor
In image processing, generating a color image from monochrome data by assigning a color to each of the gray levels.
flat-field frame
A frame taken with a CCD camera of a surface that is evenly illuminated by diffuse light. This frame shows irregularities in...
photogrammetry
Photogrammetry is a technique used to obtain accurate three-dimensional measurements of objects and environments through the...
point processing
In digital image processing, a subcategory of frame processing that transforms pixel brightness and contrast through use of...
resolution
1. In optics, the ability of a lens system to reproduce the points, lines and surfaces in an object as separate entities in...
erosion
In image processing, a morphology operator in which a structuring element or probe of a particular shape is moved over the...
spline function
Potential alternative to the conventional pulse approximation method of digital image processing because of its highly...
dilation
In image processing, a morphology operator in which a structuring element or probe of a particular shape is moved over the...
frame processing
In image processing, inclusive term for point and group processing.
edge enhancement
In image processing, any operation that strengthens information about the edges of objects displayed. Three types of spatial...
optical Fourier transform
The optical Fourier transform is a mathematical operation applied to optical signals that involves transforming a spatial...
automated optical inspection
Automated optical inspection (AOI) is a technology used in manufacturing processes, particularly in electronics, to...
whole slide imaging
Whole slide imaging (WSI), also known as virtual slide microscopy or digital pathology, is a technology that involves the...
spatial filtering
In image processing, the enhancement of an image by increasing or decreasing its spatial frequencies.
pixel
A pixel, short for "picture element," is the smallest controllable element of a digital image or display. It is a...
image centroid
Often referred to as the geometric center of a given image or image plane, the centroid of an image is a fixed point located...
lookup table
In image processing, the memory that stores the values for the point processes. Input pixel values are those for the...
digital-to-analog converter
In image processing, a device that transforms the digital data into an analog video image that can be viewed on a monitor or...
transputer
A computer whose architecture contains several CPU chips arranged in parallel. Often used in image processing systems.
dithering
In image processing, modifying the dot that forms the image in order to simulate a series of gray tones.
machine vision
Machine vision, also known as computer vision or computer sight, refers to the technology that enables machines, typically...
frame grabber
Image processing peripheral that converts video images from cameras into digital format and transfers these digital images...
structuring element
The pattern used as a probe in morphological image processing to manipulate the size and shape of objects in an image.
image photocounting distribution
Photon flow created by imaging of light into a detector array; IPD is the electrical signal used by the image processor in a...
point spread function
The point spread function (PSF) is a fundamental concept in imaging that describes the response of an imaging system to a...
edge following
In image processing, a segmentation algorithm for isolating a region in an image by following its edge.
digital holographic microscopy
Digital holographic microscopy (DHM) is an advanced imaging technique that combines holography and digital image processing...
closing
In morphological image processing, a series of dilations followed by the same number of erosions.
bismuth silicon oxide
A photorefractive material used in image processing, holography and optical switching.
electronic windowing
In target tracking, a technique for speeding up the image processing by removing bunches of pixels that are outside the area...
gray levels
In image processing, machine vision and television, discrete brightness values quantized for a group of pixels. They can...
gray scale
In image processing, the range of available gray levels. In an 8-bit system, the gray scale contains values from 0 to 255.

(70 results found)

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