Herror ::estimate_tilt_zc (
    Hobject Image,
    double *Tilt
)
Herror ::estimate_tilt_zc (
    Hobject Image,
    HTuple *Tilt
)
double HImage::EstimateTiltZc (
    void
) const
HTuple HImageArray::EstimateTiltZc (
    void
) const

Estimate the tilt of a light source.

::estimate_tilt_zc estimates the tilt of a light source, i.e. the angle between the light source and the x-axis after projection into the xy-plane, from the image Image using the algorithm of Zheng and Chellappa.


Parameters

Image (input_object)
image(-array) -> Hobject: HImage(Array)
Image for which the tilt is to be estimated.

Tilt (output_control)
angle.deg(-array) -> (HTuple.) double *
Angle between the light source and the x-axis after projection into the xy-plane (in degrees).


Result

::estimate_tilt_zc always returns the value H_MSG_TRUE.


Possible Successors

::sfs_mod_lr, ::sfs_orig_lr, ::sfs_pentland, ::phot_stereo, ::shade_height_field


Module

Tools



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