Relation To Gradients
In image processing, the computation of the local image gradient is a common operation, e.g., for edge detection. If above is an edge, then its gradient is parallel to . As is already discussed above the gradient is not a unique representation of orientation. Also, in the case of a local region which is centered on a line, the image gradient is approximately zero. However, in this case the vector is still well-defined except for its sign. Therefore, is a more appropriate starting point for defining local orientation than the image gradient.
Read more about this topic: Orientation (computer Vision)
Famous quotes containing the words relation to and/or relation:
“The whole point of Camp is to dethrone the serious. Camp is playful, anti-serious. More precisely, Camp involves a new, more complex relation to “the serious.” One can be serious about the frivolous, frivolous about the serious.”
—Susan Sontag (b. 1933)
“Among the most valuable but least appreciated experiences parenthood can provide are the opportunities it offers for exploring, reliving, and resolving one’s own childhood problems in the context of one’s relation to one’s child.”
—Bruno Bettelheim (20th century)