Laplacian operator
Laplacian operator A high-pass filter that is used in image processing to detect edges in an intensity-gradient image (see edge detector). Mathematically, the operator is based on the two-dimensional sum of the second derivatives of the image convolved with a Gaussian curve. The second derivatives detect rapid intensity changes and the Gaussian smooths out the effects of noise. The operator shows an interesting correspondence with biological detectors.
More From encyclopedia.com
Image Processing , image processing (picture processing) Processing of the information contained in a digital image. Image processing operations include contrast distor… operate , op·er·ate / ˈäpəˌrāt/ • v. 1. [tr.] (of a person) control the functioning of (a machine, process, or system): a shortage of workers to operate new ma… Operation , operation
1. A function from Sm (see Cartesian product) into S itself, where S is some set specific to the function. Such a function is usually refer… Infrared Detection Devices , Infrared Detection Devices
Infrared detection devices are sensors that detect radiation in the infrared portion of the electromagnetic spectrum (~=10… Imaging , Imaging
High-tech diagnostic imaging techniques that have allowed physicians to explore bodily structures and functions with a minimum of invasion to… Image , im·age / ˈimij/ • n. a representation of the external form of a person or thing in sculpture, painting, etc. ∎ a visible impression obtained by a cam…
You Might Also Like
NEARBY TERMS
Laplacian operator