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step

System object: vision.Minimum
Package: vision

Compute minimum value

Syntax

[VAL,IND] = step(H,X)
VAL = step(H,X)
IND = step(H,X)
VAL = step(H,X,R)
[...] = step(H,I,ROI)
[...] = step(H,I,LABEL,LABELNUMBERS)
[...,FLAG] = step(H,I,ROI)
[...,FLAG] = step(H,I,LABEL,LABELNUMBERS)

Description

[VAL,IND] = step(H,X) returns the minimum value, VAL, and the index or position of the minimum value, IND, along a dimension of X specified by the value of the Dimension property.

VAL = step(H,X) returns the minimum value, VAL, of the input X. When the RunningMinimum property is true, VAL corresponds to the minimum value over a sequence of inputs.

IND = step(H,X) returns the zero- or one-based index IND of the minimum value. To enable this type of processing, set the IndexOutputPort property to true and the ValueOutputPort and RunningMinimum properties to false.

VAL = step(H,X,R) computes the minimum value, VAL, over a sequence of inputs, and resets the state of H based on the value of reset signal, R, and the ResetCondition property. To enable this type of processing, set the RunningMinimum property to true and the ResetInputPort property to true.

[...] = step(H,I,ROI) computes the minimum of an input image, I, within the given region of interest, ROI. To enable this type of processing, set the ROIProcessing property to true and the ROIForm property to Lines, Rectangles or Binary mask.

[...] = step(H,I,LABEL,LABELNUMBERS) computes the minimum of an input image, I, for a region whose labels are specified in the vector LABELNUMBERS. To enable this type of processing, set the ROIProcessing property to true and the ROIForm property to Label matrix.

[...,FLAG] = step(H,I,ROI) also returns FLAG, indicating whether the given region of interest is within the image bounds. To enable this type of processing, set the ROIProcessing and ValidityOutputPort properties to true and the ROIForm property to Lines, Rectangles or Binary mask.

[...,FLAG] = step(H,I,LABEL,LABELNUMBERS) also returns FLAG, indicating whether the input label numbers are valid. To enable this type of processing, set the ROIProcessing and ValidityOutputPort properties to true and the ROIForm property to Label matrix.

    Note:   The object performs an initialization the first time the step method is executed. This initialization locks nontunable properties and input specifications, such as dimensions, complexity, and data type of the input data. If you change a nontunable property or an input specification, the System object™ issues an error. To change nontunable properties or inputs, you must first call the release method to unlock the object.

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