IMAQ Read Image And Vision Info VI

LabView NI Vision

IMAQ Read Image And Vision Info VI

Owning Palette: Searching and MatchingInstalled With: NI Vision Development Module

Reads an image file, including any extra vision information saved with the image. This includes overlay information, pattern matching template information, and calibration information, as written by the IMAQ Write Image And Vision Info VI.

Examples

IMAQ Read Image And Vision Info

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File Path is the complete pathname, including drive, directory, and filename, of the file to read.

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Image is a reference to the image structure to which the data from the image file is applied.

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Load Color Palette? (No) determines whether to load the color table present in the file, if the color table exists. If loaded, this table is read and returned by the output Color Palette. The default is FALSE.

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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.

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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.

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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.

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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.

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Color Palette out indicates an array of clusters composed of 256 elements for each of the three color planes. A specific color is the result of applying a value between 0 and 255 for each of the three color planes (red, green, and blue). If the three planes have an identical value, a gray level is obtained (0 specifies black and 255 specifies white).

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Red is the output red value.

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Green is the output green value.

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Blue is the output blue value.

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Image Out is a reference to the destination image. If Image Dst is connected, Image Dst Out is the same as Image Dst. Otherwise, Image Dst Out refers to the image referenced by Image Src.

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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.

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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.

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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.

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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.

Examples

Refer to the following for examples that use this VI.

  • LabVIEW\examples\Vision\3. Applications\Battery Clamp Inspection Example.vi

  • LabVIEW\examples\Vision\2. Functions\Calibration\Simple Calibration Example.llb