IMAQ Is Vision Info Present 2 VI

LabView NI Vision

IMAQ Is Vision Info Present 2 VI

Owning Palette: Image ManagementInstalled With: NI Vision Development Module

Checks for the presence of 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.

Details

IMAQ Is Vision Info Present 2

Image is the reference to the input image.

Vision Info specifies the type of vision information you are checking for. Choose from the following values:

Any (0)	Checks if any extra vision information is associated with the image.
Calibration (1)	Checks if any calibration information is associated with the image.
Overlay (2)	Checks if any overlay information is associated with the image.
Grayscale Template (3)	Checks if any grayscale pattern matching template information is associated with the image.
Color Template (4)	Checks if any color pattern matching template information is associated with the image.
Geometric Template (5)	Checks if any geometric matching template information is associated with the image.
Custom Data (6)	Checks if any custom data is associated with the image.
Golden Template (7)	Checks if any golden template information is associated with the image.

error in (no error) describes the error status before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.

	status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
	code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.

Image (duplicate) is a reference to the source image.

Present? returns TRUE if the extra vision information specified by Vision Info is present in the image.

error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.

	status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
	code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
	source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.

Details

The following VIs associate information with an image:

The IMAQ Learn Pattern 2 VI and the IMAQ Learn Color Pattern VI add pattern matching template information to an image.
The IMAQ Learn Calibration Template VI, the IMAQ Set Calibration Info VI, and the IMAQ Set Simple Calibration VI add calibration information to an image.
The Overlay VIs add overlay information to an image.
The IMAQ Write Custom Data VI writes custom data values to an image.

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

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