Operator Reference

HALCON Operator Reference / 3D Reconstruction / Photometric Stereo
ClassesClasses | | Operators

estimate_tilt_zcestimate_tilt_zcEstimateTiltZcEstimateTiltZcestimate_tilt_zc (Operator)

estimate_tilt_zcestimate_tilt_zcEstimateTiltZcEstimateTiltZcestimate_tilt_zc — Estimate the tilt of a light source.

Signature

estimate_tilt_zc(Image : : : Tilt)

Herror estimate_tilt_zc(const Hobject Image, double* Tilt)

Herror T_estimate_tilt_zc(const Hobject Image, Htuple* Tilt)

void EstimateTiltZc(const HObject& Image, HTuple* Tilt)

HTuple HImage::EstimateTiltZc() const

static void HOperatorSet.EstimateTiltZc(HObject image, out HTuple tilt)

HTuple HImage.EstimateTiltZc()

def estimate_tilt_zc(image: HObject) -> Sequence[float]

def estimate_tilt_zc_s(image: HObject) -> float

Description

estimate_tilt_zcestimate_tilt_zcEstimateTiltZcEstimateTiltZcestimate_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 ImageImageImageimageimage using the algorithm of Zheng and Chellappa.

Execution Information

  • Multithreading type: reentrant (runs in parallel with non-exclusive operators).
  • Multithreading scope: global (may be called from any thread).
  • Automatically parallelized on tuple level.

Parameters

ImageImageImageimageimage (input_object)  singlechannelimage(-array) → objectHImageHObjectHObjectHobject (byte)

Image for which the tilt is to be estimated.

TiltTiltTilttilttilt (output_control)  angle.deg(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)

Angle between the light source and the x-axis after projection into the xy-plane (in degrees).

Result

estimate_tilt_zcestimate_tilt_zcEstimateTiltZcEstimateTiltZcestimate_tilt_zc always returns the value 2 ( H_MSG_TRUE) .

Possible Successors

sfs_mod_lrsfs_mod_lrSfsModLrSfsModLrsfs_mod_lr, sfs_orig_lrsfs_orig_lrSfsOrigLrSfsOrigLrsfs_orig_lr, sfs_pentlandsfs_pentlandSfsPentlandSfsPentlandsfs_pentland, photometric_stereophotometric_stereoPhotometricStereoPhotometricStereophotometric_stereo, shade_height_fieldshade_height_fieldShadeHeightFieldShadeHeightFieldshade_height_field

Module

3D Metrology

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