OpenLvVision_OpenCv.lvlib:PCA.lvclass:PCA BackProject.vi

Reconstructs vectors from their PC projections.

The methods are inverse operations to PCA::project. They take PC coordinates of projected vectors and reconstruct the original vectors. Unless all the principal components have been retained, the reconstructed vectors are different from the originals. But typically, the difference is small if the number of components is large enough (but still much smaller than the original vector dimensionality). As a result, PCA is used.

For detailed information, please refer to the OpenCV documentation

OpenLvVision_OpenCv.lvlib:PCA.lvclass:PCA BackProject.vi

cerrcodeclst

error in (no error)

The error in cluster can accept error information wired from VIs previously called. Use this information to decide if any functionality should be bypassed in the event of errors from other VIs.

The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    cbool

    		status

    The status boolean is either TRUE (X) for an error, or FALSE (checkmark) for no error or a warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    ci32

    		code

    The code input identifies the error or warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    cstr

    		source

    The source string describes the origin of the error or warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

c2ddbl

Vectors

coordinates of the vectors in the principal component subspace, the layout and size are the same as of PCA::project output vectors.

    cdbl

    		Numeric

cOpenLvVision__OpenCv_lvlib_PCAlvclass

PCA in

c2ddbl

Result in

Reuse a previously created array to enhance performance.

    cdbl

    		Numeric

ierrcodeclst

error out

The error out cluster passes error or warning information out of a VI to be used by other VIs.

The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    ibool

    		status

    The status boolean is either TRUE (X) for an error, or FALSE (checkmark) for no error or a warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    ii32

    		code

    The code input identifies the error or warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

    istr

    		source

    The source string describes the origin of the error or warning.

    The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

iOpenLvVision__OpenCv_lvlib_PCAlvclass

PCA out

i2ddbl

Result out

reconstructed vectors; the layout and size are the same as of PCA::project input vectors.

    idbl

    		Numeric