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best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgBestMatchPreMg is obsolete and is only provided for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
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 HTemplate::BestMatchPreMg(const HImage& ImagePyramid, double MaxError, const wchar_t* SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const
(Windows only)
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
void HImage::BestMatchPreMg(const HTemplate& TemplateID, double MaxError, const wchar_t* SubPixel, Hlong NumLevels, Hlong WhichLevels, double* Row, double* Column, double* Error) const
(Windows only)
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
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
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