Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
image processing operator
|
| gptkbp:alsoKnownAs |
gptkb:Sobel_operator
|
| gptkbp:appliesTo |
digital images
|
| gptkbp:category |
computer vision
image processing |
| gptkbp:citation |
Sobel, I., and Feldman, G. (1968). 'A 3x3 Isotropic Gradient Operator for Image Processing.'
|
| gptkbp:computes |
gradient direction
gradient magnitude |
| gptkbp:developedBy |
gptkb:Irwin_Sobel
gptkb:Gary_Feldman |
| gptkbp:horizontalKernel |
[[1 0 -1],[2 0 -2],[1 0 -1]]
|
| https://www.w3.org/2000/01/rdf-schema#label |
Sobel–Feldman operator
|
| gptkbp:introducedIn |
1968
|
| gptkbp:method |
discrete differentiation
|
| gptkbp:relatedTo |
gptkb:Prewitt_operator
gptkb:Roberts_cross_operator gptkb:Canny_edge_detector |
| gptkbp:usedFor |
edge detection
|
| gptkbp:usesKernel |
3x3 convolution kernel
|
| gptkbp:verticalKernel |
[[1 2 1],[0 0 0],[-1 -2 -1]]
|
| gptkbp:bfsParent |
gptkb:Irwin_Sobel
|
| gptkbp:bfsLayer |
7
|