Table Of Contents

Learn Color Pattern (G Dataflow)

Last Modified: June 25, 2019

Creates a description of the color template image that you are going to look for during the color pattern matching stage.

This description data is appended to the input color template image. During the color pattern matching step, the color template descriptor is extracted from the color template image and used to search for the template in the color match image.

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image in

Reference to the color template image for which you want to search in the inspection image.

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learn color pattern setup data

String containing information obtained from the Setup Learn Color Pattern node.

If this input is not connected, the node uses default parameters during the learning phase. The default learns color and shape for shift-invariant pattern matching.

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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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template image out

Reference to the color template to search during the matching phase.

The template image contains the data that defines the color template pattern for the matching stage.

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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.

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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