cornerPoints
Object for storing corner points
Description
This object stores information about feature points detected from a 2-D grayscale image.
Creation
Description
constructs a points
= cornerPoints(location
)cornerPoints
object from an M-by-2
array [x
y] of location coordinates.
specifies options using one or more name-value arguments in addition to the previous
syntax. For example points
= cornerPoints(location
,Name=Value
)cornerPoints(location,Metric=12.0)
sets strength of
the detected feature to 12.0.
Input Arguments
Properties
Object Functions
plot | Plot points |
isempty | Determine if points object is empty |
length | Number of stored points |
selectStrongest | Select points with strongest metrics |
size | Return size of points object |
selectUniform | Select uniformly distributed subset of feature points |
gather | Retrieve cornerPoints from the GPU |
Examples
Tips
Although cornerPoints
may hold many points, it is a
scalar object. Therefore, numel
(cornerPoints
) always
returns 1
. This value may differ from length
(cornerPoints
), which returns the true number of points
held by the object.
Extended Capabilities
Version History
Introduced in R2012a