best_match_pre_mgT_best_match_pre_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg (Operator)
Name
best_match_pre_mgT_best_match_pre_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg — Searching the best gray value matches in a pre generated pyramid.
Warning
best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg is obsolete and is only provided for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_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg applies gray value matching using an
image pyramid.
best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg works analogously to best_match_mgbest_match_mgBestMatchMgBestMatchMgbest_match_mg,
but it makes use of pre calculated pyramid which has to
be generated beforehand using gen_gauss_pyramidgen_gauss_pyramidGenGaussPyramidGenGaussPyramidgen_gauss_pyramid.
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
ImagePyramidImagePyramidImagePyramidimagePyramidimage_pyramid (input_object) singlechannelimage-array → objectHImageHObjectHObjectHobject (byte)
Image pyramid inside of which the pattern has to
be found.
TemplateIDTemplateIDTemplateIDtemplateIDtemplate_id (input_control) template → HTemplate, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Template number.
MaxErrorMaxErrorMaxErrormaxErrormax_error (input_control) real → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Maximal average difference of the gray values.
Default:
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
Value range:
0
≤
MaxError
MaxError
MaxError
maxError
max_error
≤
255
Minimum increment:
1
Recommended increment:
3
SubPixelSubPixelSubPixelsubPixelsub_pixel (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Exactness in subpixels in case of 'true'"true""true""true""true".
Default:
'false'
"false"
"false"
"false"
"false"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
NumLevelsNumLevelsNumLevelsnumLevelsnum_levels (input_control) integer → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Number of the used resolution levels.
Default:
3
Suggested values:
1, 2, 3, 4, 5, 6
WhichLevelsWhichLevelsWhichLevelswhichLevelswhich_levels (input_control) integer → HTupleUnion[str, int]HTupleHtuple (integer / string) (int / long / string) (Hlong / HString) (Hlong / char*)
Resolution level up to which the
method “best match” is used.
Default:
'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 → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row position of the best match.
ColumnColumnColumncolumncolumn (output_control) point.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column position of the best match.
ErrorErrorErrorerrorerror (output_control) real → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Average divergence of the gray values in the
best match.
Result
If the parameter values are correct, the operator best_match_pre_mgbest_match_pre_mgBestMatchPreMgBestMatchPreMgbest_match_pre_mg
returns the value 2 (
H_MSG_TRUE)
.
If the input is empty (no input images are available) the behavior 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>)set_system("no_object_result",<Result>).
If necessary, an exception is raised.
Possible Predecessors
gen_gauss_pyramidgen_gauss_pyramidGenGaussPyramidGenGaussPyramidgen_gauss_pyramid,
create_templatecreate_templateCreateTemplateCreateTemplatecreate_template,
read_templateread_templateReadTemplateReadTemplateread_template,
adapt_templateadapt_templateAdaptTemplateAdaptTemplateadapt_template,
draw_regiondraw_regionDrawRegionDrawRegiondraw_region,
draw_rectangle1draw_rectangle1DrawRectangle1DrawRectangle1draw_rectangle1,
reduce_domainreduce_domainReduceDomainReduceDomainreduce_domain,
set_reference_templateset_reference_templateSetReferenceTemplateSetReferenceTemplateset_reference_template
Alternatives
fast_matchfast_matchFastMatchFastMatchfast_match,
fast_match_mgfast_match_mgFastMatchMgFastMatchMgfast_match_mg,
exhaustive_matchexhaustive_matchExhaustiveMatchExhaustiveMatchexhaustive_match,
exhaustive_match_mgexhaustive_match_mgExhaustiveMatchMgExhaustiveMatchMgexhaustive_match_mg
Module
Matching