Classify Contour Curvature (G Dataflow)

Classifies the contour located in the given image.

contour image in

Reference to the image containing a contour.

kernel width

Size of the kernel used to compute the curvature profile of the selected contour.

curvature classes

Array with one element for every curvature class in the image.

minimum curvature

Minimum curvature for the selected curvature range.

maximum curvature

Maximum curvature for the selected curvature range.

class label

Class to which the sample belongs.

error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

contour image out

Reference to the image containing a contour.

classified curves

An array that specifies information about the curves.

length (pixel)

Length, in pixels, of the curves within the curvature range.

length (real)

Length, in calibrated units, of the curves within the curvature range.

maximum curvature (pixel)

Maximum curvature, in pixels, for the selected curvature range.

maximum curvature (real)

Maximum curvature, in calibrated units, for the selected curvature range.

class label

Class to which the the sample belongs.

curve points

Point-coordinate cluster that defines the points of the curve.

x

X-coordinate of the point.

y

Y-coordinate of the point.

error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application