HALCON 18.05 / HALCON Operator Reference / Legacy / Matching
ClassesClasses | | Operators

best_match_pre_mgT_best_match_pre_mgBestMatchPreMgBestMatchPreMg (Operator)

Name

best_match_pre_mgT_best_match_pre_mgBestMatchPreMgBestMatchPreMg — Searching the best gray value matches in a pre generated pyramid.

Warning

best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgBestMatchPreMg is obsolete and is only provided for reasons of backward compatibility. New applications should use the shape-based or NCC-based operators instead.

Signature

best_match_pre_mg(ImagePyramid : : TemplateID, MaxError, SubPixel, NumLevels, WhichLevels : Row, Column, Error)

Herror T_best_match_pre_mg(const Hobject ImagePyramid, const Htuple TemplateID, const Htuple MaxError, const Htuple SubPixel, const Htuple NumLevels, const Htuple WhichLevels, Htuple* Row, Htuple* Column, Htuple* Error)

void BestMatchPreMg(const HObject& ImagePyramid, const HTuple& TemplateID, const HTuple& MaxError, const HTuple& SubPixel, const HTuple& NumLevels, const HTuple& WhichLevels, HTuple* Row, HTuple* Column, HTuple* Error)

void HTemplate::BestMatchPreMg(const HImage& ImagePyramid, double MaxError, const HString& SubPixel, Hlong NumLevels, const HTuple& WhichLevels, double* Row, double* Column, double* Error) const

void HTemplate::BestMatchPreMg(const HImage& ImagePyramid, double MaxError, const HString& SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const

void HTemplate::BestMatchPreMg(const HImage& ImagePyramid, double MaxError, const char* SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const

void HImage::BestMatchPreMg(const HTemplate& TemplateID, double MaxError, const HString& SubPixel, Hlong NumLevels, const HTuple& WhichLevels, double* Row, double* Column, double* Error) const

void HImage::BestMatchPreMg(const HTemplate& TemplateID, double MaxError, const HString& SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const

void HImage::BestMatchPreMg(const HTemplate& TemplateID, double MaxError, const char* SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const

static void HOperatorSet.BestMatchPreMg(HObject imagePyramid, HTuple templateID, HTuple maxError, HTuple subPixel, HTuple numLevels, HTuple whichLevels, out HTuple row, out HTuple column, out HTuple error)

void HTemplate.BestMatchPreMg(HImage imagePyramid, double maxError, string subPixel, int numLevels, HTuple whichLevels, out double row, out double column, out double error)

void HTemplate.BestMatchPreMg(HImage imagePyramid, double maxError, string subPixel, int numLevels, int whichLevels, out double row, out double column, out double error)

void HImage.BestMatchPreMg(HTemplate templateID, double maxError, string subPixel, int numLevels, HTuple whichLevels, out double row, out double column, out double error)

void HImage.BestMatchPreMg(HTemplate templateID, double maxError, string subPixel, int numLevels, int whichLevels, out double row, out double column, out double error)

Description

best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgBestMatchPreMg applies gray value matching using an image pyramid. best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgBestMatchPreMg works analogously to best_match_mgbest_match_mgBestMatchMgBestMatchMgBestMatchMg, but it makes use of pre calculated pyramid which has to be generated beforehand using gen_gauss_pyramidgen_gauss_pyramidGenGaussPyramidGenGaussPyramidGenGaussPyramid. This reduces runtime if more than one match has to be done or the pyramid has be used otherwise. The pyramid has to be generated using the zooming factor 0.5 and the mode 'constant'"constant""constant""constant""constant".

Execution Information

Parameters

ImagePyramidImagePyramidImagePyramidImagePyramidimagePyramid (input_object)  singlechannelimage-array → objectHImageHImageHobject (byte)

Image pyramid inside of which the pattern has to be found.

TemplateIDTemplateIDTemplateIDTemplateIDtemplateID (input_control)  template → HTemplate, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Template number.

MaxErrorMaxErrorMaxErrorMaxErrormaxError (input_control)  real → HTupleHTupleHtuple (real) (double) (double) (double)

Maximal average difference of the grayvalues.

Default value: 30.0

Suggested values: 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 9.0, 11.0, 15.0, 17.0, 20.0, 30.0, 40.0, 50.0, 60.0, 70.0

Typical range of values: 0 ≤ MaxError MaxError MaxError MaxError maxError ≤ 255

Minimum increment: 1

Recommended increment: 3

SubPixelSubPixelSubPixelSubPixelsubPixel (input_control)  string → HTupleHTupleHtuple (string) (string) (HString) (char*)

Exactness in subpixels in case of 'true'"true""true""true""true".

Default value: 'false' "false" "false" "false" "false"

List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"

NumLevelsNumLevelsNumLevelsNumLevelsnumLevels (input_control)  integer → HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Number of the used resolution levels.

Default value: 3

Suggested values: 1, 2, 3, 4, 5, 6

WhichLevelsWhichLevelsWhichLevelsWhichLevelswhichLevels (input_control)  integer → HTupleHTupleHtuple (integer / string) (int / long / string) (Hlong / HString) (Hlong / char*)

Resolution level up to which the method “best match” is used.

Default value: 'original' "original" "original" "original" "original"

Suggested values: 'all'"all""all""all""all", 'original'"original""original""original""original", 0, 1, 2, 3, 4, 5, 6

RowRowRowRowrow (output_control)  point.y → HTupleHTupleHtuple (real) (double) (double) (double)

Row position of the best match.

ColumnColumnColumnColumncolumn (output_control)  point.x → HTupleHTupleHtuple (real) (double) (double) (double)

Column position of the best match.

ErrorErrorErrorErrorerror (output_control)  real → HTupleHTupleHtuple (real) (double) (double) (double)

Average divergence of the grayvalues in the best match.

Result

If the parameter values are correct, the operator best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgBestMatchPreMg returns the value 2 (H_MSG_TRUE). If the input is empty (no input images are available) the behaviour can be set via set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>). If necessary, an exception is raised.

Possible Predecessors

gen_gauss_pyramidgen_gauss_pyramidGenGaussPyramidGenGaussPyramidGenGaussPyramid, create_templatecreate_templateCreateTemplateCreateTemplateCreateTemplate, read_templateread_templateReadTemplateReadTemplateReadTemplate, adapt_templateadapt_templateAdaptTemplateAdaptTemplateAdaptTemplate, draw_regiondraw_regionDrawRegionDrawRegionDrawRegion, draw_rectangle1draw_rectangle1DrawRectangle1DrawRectangle1DrawRectangle1, reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain, set_reference_templateset_reference_templateSetReferenceTemplateSetReferenceTemplateSetReferenceTemplate

Alternatives

fast_matchfast_matchFastMatchFastMatchFastMatch, fast_match_mgfast_match_mgFastMatchMgFastMatchMgFastMatchMg, exhaustive_matchexhaustive_matchExhaustiveMatchExhaustiveMatchExhaustiveMatch, exhaustive_match_mgexhaustive_match_mgExhaustiveMatchMgExhaustiveMatchMgExhaustiveMatchMg

Module

Matching

ClassesClasses | | Operators
HALCON Operator Reference 18.05 Copyright © 1996-2018 MVTec Software GmbH