Roberts cross
The Roberts cross operator is used in image processing and computer vision for edge detection. It was one of the first edge detectors and was initially proposed by Lawrence Roberts in 1963. As a differential operator, the idea behind the Roberts cross operator is to approximate the gradient of an image through discrete differentiation which is achieved by computing the sum of the squares of the differences between diagonally adjacent pixels. 
Q1070689
image processing
Concept
Q844240
computer vision
Concept
Q1513153
edge detection
Concept
Q92935
Lawrence Roberts
PER
Q2068418
differential operator
Concept
Q173582
gradient
Concept
Q1753515
Roberts cross
Concept
Q1753515
Roberts cross
Concept
1963-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1963
DATE
use
named after
subclass of