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Commit 431daf59 authored by Andrey Kamaev's avatar Andrey Kamaev
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* Fixed cross-referencing in reference manual (except C++ operator() ). 

* Fixed display of struct and class definitions (except classes with base class specified).
* Fixed formatting and referencing errors in several documentation files.
parent 6b88d7a8
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Showing with 101 additions and 88 deletions
doc/ocv.py
View file @ 431daf59
...@@ -1149,6 +1149,8 @@ class OCVObject(ObjectDescription): ...@@ -1149,6 +1149,8 @@ class OCVObject(ObjectDescription):
#(self.env.docname, self.objtype, theid)) #(self.env.docname, self.objtype, theid))
self.env.domaindata['ocv']['objects'].setdefault(theid, self.env.domaindata['ocv']['objects'].setdefault(theid,
(self.env.docname, self.objtype, theid)) (self.env.docname, self.objtype, theid))
self.env.domaindata['ocv']['objects2'].setdefault(name,
(self.env.docname, self.objtype, theid))
indextext = self.get_index_text(name) indextext = self.get_index_text(name)
if indextext: if indextext:
...@@ -1192,33 +1194,32 @@ class OCVObject(ObjectDescription): ...@@ -1192,33 +1194,32 @@ class OCVObject(ObjectDescription):
class OCVClassObject(OCVObject): class OCVClassObject(OCVObject):
object_annotation = "class "
object_long_name = "class"
def get_index_text(self, name): def attach_modifiers(self, node, obj):
return _('%s (C++ class)') % name if obj.visibility != 'public':
node += addnodes.desc_annotation(obj.visibility,
def parse_definition(self, parser): obj.visibility)
return parser.parse_class() node += nodes.Text(' ')
if obj.static:
def describe_signature(self, signode, cls): node += addnodes.desc_annotation('static', 'static')
#self.attach_modifiers(signode, cls) node += nodes.Text(' ')
#signode += addnodes.desc_annotation('class ', 'class ')
#self.attach_name(signode, cls.name)
pass
class OCVStructObject(OCVObject):
def get_index_text(self, name): def get_index_text(self, name):
return _('%s (C structure)') % name return _('%s (C++ %s)') % (name, self.__class__.object_long_name)
def parse_definition(self, parser): def parse_definition(self, parser):
return parser.parse_class() return parser.parse_class()
def describe_signature(self, signode, cls): def describe_signature(self, signode, cls):
#self.attach_modifiers(signode, cls) self.attach_modifiers(signode, cls)
#signode += addnodes.desc_annotation('class ', 'class ') signode += addnodes.desc_annotation(self.__class__.object_annotation, self.__class__.object_annotation)
#self.attach_name(signode, cls.name) self.attach_name(signode, cls.name)
pass
class OCVStructObject(OCVClassObject):
object_annotation = "struct "
object_long_name = "structure"
class OCVTypeObject(OCVObject): class OCVTypeObject(OCVObject):
...@@ -1238,9 +1239,7 @@ class OCVTypeObject(OCVObject): ...@@ -1238,9 +1239,7 @@ class OCVTypeObject(OCVObject):
signode += nodes.Text(' ') signode += nodes.Text(' ')
self.attach_name(signode, obj.name) self.attach_name(signode, obj.name)
class OCVMemberObject(OCVObject): class OCVMemberObject(OCVObject):
ismember = True ismember = True
def get_index_text(self, name): def get_index_text(self, name):
...@@ -1259,7 +1258,6 @@ class OCVMemberObject(OCVObject): ...@@ -1259,7 +1258,6 @@ class OCVMemberObject(OCVObject):
if obj.value is not None: if obj.value is not None:
signode += nodes.Text(u' = ' + obj.value) signode += nodes.Text(u' = ' + obj.value)
class OCVFunctionObject(OCVObject): class OCVFunctionObject(OCVObject):
def attach_function(self, node, func): def attach_function(self, node, func):
...@@ -1417,6 +1415,10 @@ class OCVDomain(Domain): ...@@ -1417,6 +1415,10 @@ class OCVDomain(Domain):
initial_data = { initial_data = {
'objects': {}, # fullname -> docname, objtype 'objects': {}, # fullname -> docname, objtype
} }
def __init__(self, env):
Domain.__init__(self, env)
self.data['objects2'] = {}
def clear_doc(self, docname): def clear_doc(self, docname):
for fullname, (fn, _, _) in self.data['objects'].items(): for fullname, (fn, _, _) in self.data['objects'].items():
...@@ -1427,9 +1429,19 @@ class OCVDomain(Domain): ...@@ -1427,9 +1429,19 @@ class OCVDomain(Domain):
typ, target, node, contnode): typ, target, node, contnode):
def _create_refnode(expr): def _create_refnode(expr):
name = unicode(expr) name = unicode(expr)
if name not in self.data['objects']: if "type" in self.objtypes_for_role(typ):
return None
if "cfunction" in self.objtypes_for_role(typ):
if not name.lower().startswith(u'cv'):
name = u'cv' + name
dict = self.data['objects']
if name not in dict:
dict = self.data['objects2']
if name not in dict:
refdoc = node.get('refdoc', fromdocname)
env.warn(refdoc, 'unresolved reference: %r - %r' % (target, typ), node.line)
return None return None
obj = self.data['objects'][name] obj = dict[name]
if obj[1] not in self.objtypes_for_role(typ): if obj[1] not in self.objtypes_for_role(typ):
return None return None
return make_refnode(builder, fromdocname, obj[0], obj[2], return make_refnode(builder, fromdocname, obj[0], obj[2],
...@@ -1443,7 +1455,7 @@ class OCVDomain(Domain): ...@@ -1443,7 +1455,7 @@ class OCVDomain(Domain):
raise DefinitionError('') raise DefinitionError('')
except DefinitionError: except DefinitionError:
refdoc = node.get('refdoc', fromdocname) refdoc = node.get('refdoc', fromdocname)
env.warn(refdoc, 'unparseable1 C++ definition: %r' % target, env.warn(refdoc, 'unparseable C++ definition: %r' % target,
node.line) node.line)
return None return None
......
modules/core/doc/dynamic_structures.rst
View file @ 431daf59
Dynamic Structures Dynamic Structures
================== ==================
.. highlight:: c .. highlight:: c
...@@ -452,17 +452,17 @@ Finds an edge in a graph. ...@@ -452,17 +452,17 @@ Finds an edge in a graph.
.. ocv:cfunction:: CvGraphEdge* cvFindGraphEdge( const CvGraph* graph, int start_idx, int end_idx ) .. ocv:cfunction:: CvGraphEdge* cvFindGraphEdge( const CvGraph* graph, int start_idx, int end_idx )
::
#define cvGraphFindEdge cvFindGraphEdge
..
:param graph: Graph :param graph: Graph
:param start_idx: Index of the starting vertex of the edge :param start_idx: Index of the starting vertex of the edge
:param end_idx: Index of the ending vertex of the edge. For an unoriented graph, the order of the vertex parameters does not matter. :param end_idx: Index of the ending vertex of the edge. For an unoriented graph, the order of the vertex parameters does not matter.
::
#define cvGraphFindEdge cvFindGraphEdge
..
The function finds the graph edge connecting two specified vertices and returns a pointer to it or NULL if the edge does not exist. The function finds the graph edge connecting two specified vertices and returns a pointer to it or NULL if the edge does not exist.
...@@ -472,17 +472,17 @@ Finds an edge in a graph by using its pointer. ...@@ -472,17 +472,17 @@ Finds an edge in a graph by using its pointer.
.. ocv:cfunction:: CvGraphEdge* cvFindGraphEdgeByPtr( const CvGraph* graph, const CvGraphVtx* startVtx, const CvGraphVtx* endVtx ) .. ocv:cfunction:: CvGraphEdge* cvFindGraphEdgeByPtr( const CvGraph* graph, const CvGraphVtx* startVtx, const CvGraphVtx* endVtx )
::
#define cvGraphFindEdgeByPtr cvFindGraphEdgeByPtr
..
:param graph: Graph :param graph: Graph
:param startVtx: Pointer to the starting vertex of the edge :param startVtx: Pointer to the starting vertex of the edge
:param endVtx: Pointer to the ending vertex of the edge. For an unoriented graph, the order of the vertex parameters does not matter. :param endVtx: Pointer to the ending vertex of the edge. For an unoriented graph, the order of the vertex parameters does not matter.
::
#define cvGraphFindEdgeByPtr cvFindGraphEdgeByPtr
..
The function finds the graph edge connecting two specified vertices and returns pointer to it or NULL if the edge does not exists. The function finds the graph edge connecting two specified vertices and returns pointer to it or NULL if the edge does not exists.
...@@ -521,15 +521,16 @@ Returns a pointer to a sequence element according to its index. ...@@ -521,15 +521,16 @@ Returns a pointer to a sequence element according to its index.
.. ocv:cfunction:: char* cvGetSeqElem( const CvSeq* seq, int index ) .. ocv:cfunction:: char* cvGetSeqElem( const CvSeq* seq, int index )
:param seq: Sequence
:param index: Index of element
:: ::
#define CV_GET_SEQ_ELEM( TYPE, seq, index ) (TYPE*)cvGetSeqElem( (CvSeq*)(seq), (index) ) #define CV_GET_SEQ_ELEM( TYPE, seq, index ) (TYPE*)cvGetSeqElem( (CvSeq*)(seq), (index) )
.. ..
:param seq: Sequence
:param index: Index of element
The function finds the element with the given The function finds the element with the given
index in the sequence and returns the pointer to it. If the element index in the sequence and returns the pointer to it. If the element
...@@ -841,6 +842,12 @@ Allocates a text string in a storage block. ...@@ -841,6 +842,12 @@ Allocates a text string in a storage block.
.. ocv:cfunction:: CvString cvMemStorageAllocString(CvMemStorage* storage, const char* ptr, int len=-1) .. ocv:cfunction:: CvString cvMemStorageAllocString(CvMemStorage* storage, const char* ptr, int len=-1)
:param storage: Memory storage
:param ptr: The string
:param len: Length of the string (not counting the ending ``NUL`` ) . If the parameter is negative, the function computes the length.
:: ::
typedef struct CvString typedef struct CvString
...@@ -852,12 +859,6 @@ Allocates a text string in a storage block. ...@@ -852,12 +859,6 @@ Allocates a text string in a storage block.
.. ..
:param storage: Memory storage
:param ptr: The string
:param len: Length of the string (not counting the ending ``NUL`` ) . If the parameter is negative, the function computes the length.
The function creates copy of the string The function creates copy of the string
in memory storage. It returns the structure that contains user-passed in memory storage. It returns the structure that contains user-passed
or computed length of the string and pointer to the copied string. or computed length of the string and pointer to the copied string.
...@@ -1256,6 +1257,12 @@ Sorts sequence element using the specified comparison function. ...@@ -1256,6 +1257,12 @@ Sorts sequence element using the specified comparison function.
.. ocv:cfunction:: void cvSeqSort( CvSeq* seq, CvCmpFunc func, void* userdata=NULL ) .. ocv:cfunction:: void cvSeqSort( CvSeq* seq, CvCmpFunc func, void* userdata=NULL )
:param seq: The sequence to sort
:param func: The comparison function that returns a negative, zero, or positive value depending on the relationships among the elements (see the above declaration and the example below) - a similar function is used by ``qsort`` from C runline except that in the latter, ``userdata`` is not used
:param userdata: The user parameter passed to the compasion function; helps to avoid global variables in some cases
:: ::
/* a < b ? -1 : a > b ? 1 : 0 */ /* a < b ? -1 : a > b ? 1 : 0 */
...@@ -1263,12 +1270,6 @@ Sorts sequence element using the specified comparison function. ...@@ -1263,12 +1270,6 @@ Sorts sequence element using the specified comparison function.
.. ..
:param seq: The sequence to sort
:param func: The comparison function that returns a negative, zero, or positive value depending on the relationships among the elements (see the above declaration and the example below) - a similar function is used by ``qsort`` from C runline except that in the latter, ``userdata`` is not used
:param userdata: The user parameter passed to the compasion function; helps to avoid global variables in some cases
The function sorts the sequence in-place using the specified criteria. Below is an example of using this function: The function sorts the sequence in-place using the specified criteria. Below is an example of using this function:
:: ::
......
modules/imgproc/doc/filtering.rst
View file @ 431daf59
...@@ -51,13 +51,13 @@ The class ``BaseColumnFilter`` is a base class for filtering data using single-c ...@@ -51,13 +51,13 @@ The class ``BaseColumnFilter`` is a base class for filtering data using single-c
where where
:math:`F` is a filtering function but, as it is represented as a class, it can produce any side effects, memorize previously processed data, and so on. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the :math:`F` is a filtering function but, as it is represented as a class, it can produce any side effects, memorize previously processed data, and so on. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the
:ocv:func:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data. :ocv:class:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data.
.. seealso:: .. seealso::
:ocv:func:`BaseRowFilter`, :ocv:class:`BaseRowFilter`,
:ocv:func:`BaseFilter`, :ocv:class:`BaseFilter`,
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`getColumnSumFilter`, :ocv:func:`getColumnSumFilter`,
:ocv:func:`getLinearColumnFilter`, :ocv:func:`getLinearColumnFilter`,
:ocv:func:`getMorphologyColumnFilter` :ocv:func:`getMorphologyColumnFilter`
...@@ -101,13 +101,13 @@ The class ``BaseFilter`` is a base class for filtering data using 2D kernels. Fi ...@@ -101,13 +101,13 @@ The class ``BaseFilter`` is a base class for filtering data using 2D kernels. Fi
where where
:math:`F` is a filtering function. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the :math:`F` is a filtering function. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the
:ocv:func:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data. :ocv:class:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data.
.. seealso:: .. seealso::
:ocv:func:`BaseColumnFilter`, :ocv:class:`BaseColumnFilter`,
:ocv:func:`BaseRowFilter`, :ocv:class:`BaseRowFilter`,
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`getLinearFilter`, :ocv:func:`getLinearFilter`,
:ocv:func:`getMorphologyFilter` :ocv:func:`getMorphologyFilter`
...@@ -143,13 +143,13 @@ The class ``BaseRowFilter`` is a base class for filtering data using single-row ...@@ -143,13 +143,13 @@ The class ``BaseRowFilter`` is a base class for filtering data using single-row
where where
:math:`F` is a filtering function. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the :math:`F` is a filtering function. The class only defines an interface and is not used directly. Instead, there are several functions in OpenCV (and you can add more) that return pointers to the derived classes that implement specific filtering operations. Those pointers are then passed to the
:ocv:func:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data. :ocv:class:`FilterEngine` constructor. While the filtering operation interface uses the ``uchar`` type, a particular implementation is not limited to 8-bit data.
.. seealso:: .. seealso::
:ocv:func:`BaseColumnFilter`, :ocv:class:`BaseColumnFilter`,
:ocv:func:`Filter`, :ocv:func:`Filter`,
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`getLinearRowFilter`, :ocv:func:`getLinearRowFilter`,
:ocv:func:`getMorphologyRowFilter`, :ocv:func:`getMorphologyRowFilter`,
:ocv:func:`getRowSumFilter` :ocv:func:`getRowSumFilter`
...@@ -347,7 +347,7 @@ Unlike the earlier versions of OpenCV, now the filtering operations fully suppor ...@@ -347,7 +347,7 @@ Unlike the earlier versions of OpenCV, now the filtering operations fully suppor
Explore the data types. As it was mentioned in the Explore the data types. As it was mentioned in the
:ocv:func:`BaseFilter` description, the specific filters can process data of any type, despite that ``Base*Filter::operator()`` only takes ``uchar`` pointers and no information about the actual types. To make it all work, the following rules are used: :ocv:class:`BaseFilter` description, the specific filters can process data of any type, despite that ``Base*Filter::operator()`` only takes ``uchar`` pointers and no information about the actual types. To make it all work, the following rules are used:
* *
In case of separable filtering, ``FilterEngine::rowFilter`` is applied first. It transforms the input image data (of type ``srcType`` ) to the intermediate results stored in the internal buffers (of type ``bufType`` ). Then, these intermediate results are processed as In case of separable filtering, ``FilterEngine::rowFilter`` is applied first. It transforms the input image data (of type ``srcType`` ) to the intermediate results stored in the internal buffers (of type ``bufType`` ). Then, these intermediate results are processed as
...@@ -359,9 +359,9 @@ Explore the data types. As it was mentioned in the ...@@ -359,9 +359,9 @@ Explore the data types. As it was mentioned in the
.. seealso:: .. seealso::
:ocv:func:`BaseColumnFilter`, :ocv:class:`BaseColumnFilter`,
:ocv:func:`BaseFilter`, :ocv:class:`BaseFilter`,
:ocv:func:`BaseRowFilter`, :ocv:class:`BaseRowFilter`,
:ocv:func:`createBoxFilter`, :ocv:func:`createBoxFilter`,
:ocv:func:`createDerivFilter`, :ocv:func:`createDerivFilter`,
:ocv:func:`createGaussianFilter`, :ocv:func:`createGaussianFilter`,
...@@ -457,12 +457,12 @@ The function computes and returns the coordinate of a donor pixel corresponding ...@@ -457,12 +457,12 @@ The function computes and returns the coordinate of a donor pixel corresponding
Normally, the function is not called directly. It is used inside Normally, the function is not called directly. It is used inside
:ocv:func:`FilterEngine` and :ocv:class:`FilterEngine` and
:ocv:func:`copyMakeBorder` to compute tables for quick extrapolation. :ocv:func:`copyMakeBorder` to compute tables for quick extrapolation.
.. seealso:: .. seealso::
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`copyMakeBorder` :ocv:func:`copyMakeBorder`
...@@ -558,7 +558,7 @@ Forms a border around an image. ...@@ -558,7 +558,7 @@ Forms a border around an image.
:param value: Border value if ``borderType==BORDER_CONSTANT`` . :param value: Border value if ``borderType==BORDER_CONSTANT`` .
The function copies the source image into the middle of the destination image. The areas to the left, to the right, above and below the copied source image will be filled with extrapolated pixels. This is not what The function copies the source image into the middle of the destination image. The areas to the left, to the right, above and below the copied source image will be filled with extrapolated pixels. This is not what
:ocv:func:`FilterEngine` or filtering functions based on it do (they extrapolate pixels on-fly), but what other more complex functions, including your own, may do to simplify image boundary handling. :ocv:class:`FilterEngine` or filtering functions based on it do (they extrapolate pixels on-fly), but what other more complex functions, including your own, may do to simplify image boundary handling.
The function supports the mode when ``src`` is already in the middle of ``dst`` . In this case, the function does not copy ``src`` itself but simply constructs the border, for example: :: The function supports the mode when ``src`` is already in the middle of ``dst`` . In this case, the function does not copy ``src`` itself but simply constructs the border, for example: ::
...@@ -611,7 +611,7 @@ Returns a box filter engine. ...@@ -611,7 +611,7 @@ Returns a box filter engine.
The function is a convenience function that retrieves the horizontal sum primitive filter with The function is a convenience function that retrieves the horizontal sum primitive filter with
:ocv:func:`getRowSumFilter` , vertical sum filter with :ocv:func:`getRowSumFilter` , vertical sum filter with
:ocv:func:`getColumnSumFilter` , constructs new :ocv:func:`getColumnSumFilter` , constructs new
:ocv:func:`FilterEngine` , and passes both of the primitive filters there. The constructed filter engine can be used for image filtering with normalized or unnormalized box filter. :ocv:class:`FilterEngine` , and passes both of the primitive filters there. The constructed filter engine can be used for image filtering with normalized or unnormalized box filter.
The function itself is used by The function itself is used by
:ocv:func:`blur` and :ocv:func:`blur` and
...@@ -619,7 +619,7 @@ The function itself is used by ...@@ -619,7 +619,7 @@ The function itself is used by
.. seealso:: .. seealso::
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`blur`, :ocv:func:`blur`,
:ocv:func:`boxFilter` :ocv:func:`boxFilter`
...@@ -714,12 +714,12 @@ Creates a non-separable linear filter engine. ...@@ -714,12 +714,12 @@ Creates a non-separable linear filter engine.
:param borderValue: Border vaule used in case of a constant border. :param borderValue: Border vaule used in case of a constant border.
The function returns a pointer to a 2D linear filter for the specified kernel, the source array type, and the destination array type. The function is a higher-level function that calls ``getLinearFilter`` and passes the retrieved 2D filter to the The function returns a pointer to a 2D linear filter for the specified kernel, the source array type, and the destination array type. The function is a higher-level function that calls ``getLinearFilter`` and passes the retrieved 2D filter to the
:ocv:func:`FilterEngine` constructor. :ocv:class:`FilterEngine` constructor.
.. seealso:: .. seealso::
:ocv:func:`createSeparableLinearFilter`, :ocv:func:`createSeparableLinearFilter`,
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`filter2D` :ocv:func:`filter2D`
...@@ -766,7 +766,7 @@ Note that ...@@ -766,7 +766,7 @@ Note that
:ocv:func:`erode`, :ocv:func:`erode`,
:ocv:func:`dilate`, :ocv:func:`dilate`,
:ocv:func:`morphologyEx`, :ocv:func:`morphologyEx`,
:ocv:func:`FilterEngine` :ocv:class:`FilterEngine`
createSeparableLinearFilter createSeparableLinearFilter
...@@ -807,13 +807,13 @@ The functions construct primitive separable linear filtering operations or a fil ...@@ -807,13 +807,13 @@ The functions construct primitive separable linear filtering operations or a fil
:ocv:func:`createSeparableLinearFilter` or even higher-level :ocv:func:`createSeparableLinearFilter` or even higher-level
:ocv:func:`sepFilter2D` . The function :ocv:func:`sepFilter2D` . The function
:ocv:func:`createMorphologyFilter` is smart enough to figure out the ``symmetryType`` for each of the two kernels, the intermediate ``bufType`` and, if filtering can be done in integer arithmetics, the number of ``bits`` to encode the filter coefficients. If it does not work for you, it is possible to call ``getLinearColumnFilter``,``getLinearRowFilter`` directly and then pass them to the :ocv:func:`createMorphologyFilter` is smart enough to figure out the ``symmetryType`` for each of the two kernels, the intermediate ``bufType`` and, if filtering can be done in integer arithmetics, the number of ``bits`` to encode the filter coefficients. If it does not work for you, it is possible to call ``getLinearColumnFilter``,``getLinearRowFilter`` directly and then pass them to the
:ocv:func:`FilterEngine` constructor. :ocv:class:`FilterEngine` constructor.
.. seealso:: .. seealso::
:ocv:func:`sepFilter2D`, :ocv:func:`sepFilter2D`,
:ocv:func:`createLinearFilter`, :ocv:func:`createLinearFilter`,
:ocv:func:`FilterEngine`, :ocv:class:`FilterEngine`,
:ocv:func:`getKernelType` :ocv:func:`getKernelType`
......
modules/video/doc/motion_analysis_and_object_tracking.rst
View file @ 431daf59
...@@ -573,39 +573,39 @@ Gaussian Mixture-based Backbround/Foreground Segmentation Algorithm. ...@@ -573,39 +573,39 @@ Gaussian Mixture-based Backbround/Foreground Segmentation Algorithm.
Here are important members of the class that control the algorithm, which you can set after constructing the class instance: Here are important members of the class that control the algorithm, which you can set after constructing the class instance:
:ocv:member:: nmixtures .. ocv:member:: int nmixtures
Maximum allowed number of mixture comonents. Actual number is determined dynamically per pixel. Maximum allowed number of mixture comonents. Actual number is determined dynamically per pixel.
:ocv:member:: backgroundRatio .. ocv:member:: float backgroundRatio
Threshold defining whether the component is significant enough to be included into the background model ( corresponds to ``TB=1-cf`` from the paper??which paper??). ``cf=0.1 => TB=0.9`` is default. For ``alpha=0.001``, it means that the mode should exist for approximately 105 frames before it is considered foreground. Threshold defining whether the component is significant enough to be included into the background model ( corresponds to ``TB=1-cf`` from the paper??which paper??). ``cf=0.1 => TB=0.9`` is default. For ``alpha=0.001``, it means that the mode should exist for approximately 105 frames before it is considered foreground.
:ocv:member:: varThresholdGen .. ocv:member:: float varThresholdGen
Threshold for the squared Mahalanobis distance that helps decide when a sample is close to the existing components (corresponds to ``Tg``). If it is not close to any component, a new component is generated. ``3 sigma => Tg=3*3=9`` is default. A smaller ``Tg`` value generates more components. A higher ``Tg`` value may result in a small number of components but they can grow too large. Threshold for the squared Mahalanobis distance that helps decide when a sample is close to the existing components (corresponds to ``Tg``). If it is not close to any component, a new component is generated. ``3 sigma => Tg=3*3=9`` is default. A smaller ``Tg`` value generates more components. A higher ``Tg`` value may result in a small number of components but they can grow too large.
:ocv:member:: fVarInit .. ocv:member:: float fVarInit
Initial variance for the newly generated components. It affects the speed of adaptation. The parameter value is based on your estimate of the typical standard deviation from the images. OpenCV uses 15 as a reasonable value. Initial variance for the newly generated components. It affects the speed of adaptation. The parameter value is based on your estimate of the typical standard deviation from the images. OpenCV uses 15 as a reasonable value.
:ocv:member:: .. ocv:member:: float fVarMin
fVarMin Parameter used to further control the variance. Parameter used to further control the variance.
:ocv:member:: .. ocv:member:: float fVarMax
fVarMax Parameter used to further control the variance. Parameter used to further control the variance.
:ocv:member:: fCT .. ocv:member:: float fCT
Complexity reduction parameter. This parameter defines the number of samples needed to accept to prove the component exists. ``CT=0.05`` is a default value for all the samples. By setting ``CT=0`` you get an algorithm very similar to the standard Stauffer&Grimson algorithm. Complexity reduction parameter. This parameter defines the number of samples needed to accept to prove the component exists. ``CT=0.05`` is a default value for all the samples. By setting ``CT=0`` you get an algorithm very similar to the standard Stauffer&Grimson algorithm.
:param nShadowDetection .. ocv:member:: uchar nShadowDetection
The value for marking shadow pixels in the output foreground mask. Default value is 127. The value for marking shadow pixels in the output foreground mask. Default value is 127.
:param fTau .. ocv:member:: float fTau
Shadow threshold. The shadow is detected if the pixel is a darker version of the background. ``Tau`` is a threshold defining how much darker the shadow can be. ``Tau= 0.5`` means that if a pixel is more than twice darker then it is not shadow. See Prati,Mikic,Trivedi,Cucchiarra, *Detecting Moving Shadows...*, IEEE PAMI,2003. Shadow threshold. The shadow is detected if the pixel is a darker version of the background. ``Tau`` is a threshold defining how much darker the shadow can be. ``Tau= 0.5`` means that if a pixel is more than twice darker then it is not shadow. See Prati,Mikic,Trivedi,Cucchiarra, *Detecting Moving Shadows...*, IEEE PAMI,2003.
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