IMAQ Interpolate 1D VI

LabView NI Vision

IMAQ Interpolate 1D VI

Owning Palette: CaliperInstalled With: NI Vision Development Module

Resamples an array of pixels from an image using multiple interpolation functions. Use this VI to perform subpixel analysis of pixel profiles in the image.

IMAQ Interpolate 1D

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Image Src is a reference to the source image.

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Coordinate Points is an array consisting of the spatial coordinates of pixels in the image.

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SubPixel Information is a cluster containing the following parameters for subpixel analysis:

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Interpolation Type specifies the method used to perform the interpolation. The following values are possible:

Bi-Linear (0)

Uses linear interpolation in both the x- and y-directions to compute the pixel location

Quadratic (1)

Uses the quadratic formula to compute the pixel location

Cubic Spline (2)

Uses cubic splines to compute the pixel location

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SubPixel Accuracy specifies the method used to perform the interpolation.

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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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Interpolated array contains the resampled pixel data.

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Array Size specifies the size of the interpolated array.

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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.