Table Of Contents

Remove Vision Information (G Dataflow)

Last Modified: October 24, 2017

Removes specified extra vision information associated with the image.

Extra vision information can include overlay information, color and grayscale pattern matching templates, calibration information, and custom data.

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image in

Reference to the source image.

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vision info type

Type of vision information to remove.

Choose from the following values:

Name Value Description
Any 0

Removes any extra vision information that is associated with the image.

Calibration 1

Removes any calibration information that is associated with the image.

Overlay 2

Removes any overlay information that is associated with the image.

Grayscale Template 3

Removes any grayscale pattern matching template information that is associated with the image.

Color Template 4

Removes any color pattern matching template information that is associated with the image.

Geometric Template 5

Removes any geometric matching template information that is associated with the image.

Custom Data 6

Removes any custom data that is associated with the image.

Golden Template 7

Removes any golden template information that is associated with the image.

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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

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image out

Reference to image in.

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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.

Nodes that Affect Image Data

The following nodes associate information with an image:

  • The Learn Pattern node and the Learn Color Pattern node add pattern matching template information to an image.
  • The Learn Calibration nodes, the Set Calibration Information node, and the Set Simple Calibration node add calibration information to an image.
  • The Overlay nodes add overlay information to an image.
  • The Write Custom Data node writes custom data values to an image.

Use the Write Image And Vision Information File node to write an image, along with extra vision information associated with the image, to a PNG file. Use the Read Image and Vision Information node to read an image and the extra vision information.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

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


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