MATLAB IMAGE PROCESSING TOOLBOX - RELEASE NOTES Guía de usuario descargar pdf (Pagina 72)

R2010a

11-4

C = improfile(I,xi,yi,N)

has changed. In the syntax above, N specifies the number of points for which to compute

intensity values and xi and yi specify the spatial coordinates of the endpoints of the line

segments.

For a given line defined by xi and yi, improfile now returns a profile sampled at both

endpoints and all sampling points in between at roughly unit interval spacing. If the

distance between xi and yi is N pixels, the profile is evaluated at N+1 points.

Compatibility Considerations

In previous releases, if you supplied the xi and yi end points as (1,1) and (10,1), the

profile would be evaluated at nine points, the nine unit-length intervals between 1 and

10 in the continuous x-y plane. These nine points would be the two end points, plus seven

points in between.

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MATLAB IMAGE PROCESSING TOOLBOX - RELEASE NOTES Guía de usuario Pagina 72