Foundation (CVCEdge.dll) 14.1

Functions  
cvbbool_t  CFindAllEdges (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, size_t MaxEdges, PEdgeResult pResult, size_t &EdgeCount) 
Searches for all edges within an area using the contrast method. More...  
cvbbool_t  CFindEdgePair (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold1, cvbbool_t PositiveEdge1, TEdgeResult &Result1, double Threshold2, cvbbool_t PositiveEdge2, TEdgeResult &Result2) 
Searches for an edge pair within an area using the contrast method. More...  
cvbbool_t  CFindFirstEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, TEdgeResult &Result) 
Finds the first edge within an Area using the contrast method. More...  
cvbbool_t  CSFindAllEdges (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, size_t MaxEdges, PEdgeResult pResult, size_t &EdgeCount) 
Searches for all edges within an area using the contrast method with subpixel accuracy. More...  
cvbbool_t  CSFindEdgePair (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold1, cvbbool_t PositiveEdge1, TEdgeResult &Result1, double Threshold2, cvbbool_t PositiveEdge2, TEdgeResult &Result2) 
Searches for an edge pair within an area using the contrast method with subpixel accuracy. More...  
cvbbool_t  CSFindFirstEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, TEdgeResult &Result) 
Finds the first edge within an Area using the contrast method with subpixel accuracy. More...  
cvbbool_t  OSFindAllEdges (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, TEdgePolarity Polarity, EDGERESULTS &Results) 
Searches for all edges within the Area with subpixel accuracy using the second derivation method. More...  
cvbbool_t  OSFindBestEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, TEdgePolarity Polarity, TEdgeResult &Result) 
Finds the best edge within the Area with subpixel accuracy using the second derivation method. More...  
cvbbool_t  OSFindEdgePair (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold1, TEdgePolarity Polarity1, TEdgeResult &Result1, double Threshold2, TEdgePolarity Polarity2, TEdgeResult &Result2) 
Searches for an edge pair within the Area with subpixel accuracy using the second derivation method. More...  
cvbbool_t  OSFindFirstEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, TEdgePolarity Polarity, TEdgeResult &Result) 
Finds the first edge within the Area with subpixel accuracy using the second derivation method. More...  
cvbbool_t  TFindAllEdges (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, size_t MaxEdges, PEdgeResult Result, size_t &EdgeCount) 
Searches for all edges within an Area using the threshold method. More...  
cvbbool_t  TFindEdgePair (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold1, cvbbool_t PositiveEdge1, TEdgeResult &Result1, double Threshold2, cvbbool_t PositiveEdge2, TEdgeResult &Result2) 
Searches for an edge pair within the Area using the threshold method. More...  
cvbbool_t  TFindFirstEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, TEdgeResult &Result) 
Finds the first edge within the Area using the threshold method. More...  
cvbbool_t  TSFindAllEdges (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, size_t MaxEdges, PEdgeResult Result, size_t &EdgeCount) 
Searches for all edges within an Area using the threshold method with subpixel accuracy. More...  
cvbbool_t  TSFindEdgePair (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold1, cvbbool_t PositiveEdge1, TEdgeResult &Result1, double Threshold2, cvbbool_t PositiveEdge2, TEdgeResult &Result2) 
Searches for an edge pair within the Area using the threshold method with subpixel accuracy. More...  
cvbbool_t  TSFindFirstEdge (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, double Threshold, cvbbool_t PositiveEdge, TEdgeResult &Result) 
Finds the first edge within the Area using the threshold method with subpixel accuracy. More...  
cvbbool_t CFindAllEdges  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
size_t  MaxEdges,  
PEdgeResult  pResult,  
size_t &  EdgeCount  
) 
Searches for all edges within an area using the contrast method.
If the image contains multiple edges, the positions of all edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
The processing stops after MaxEdges number of edges and all others are ignored.
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold for all edges (pixel data type dependent). 
[in]  PositiveEdge  TRUE indicates a positive edge (gradient), FALSE a negative edge (gradient). 
[in]  MaxEdges  Defines the number of elements in the pResult array and thus the maximal number of edges to be found. 
[out]  pResult  Array in which, after successful execution, the positions and qualities of the found edges are written (see TEdgeResult for more information). 
[out]  EdgeCount  Number of edges found, where EdgeCount <= MaxEdges. 
TRUE
if at least one edge was detected, FALSE
otherwise.cvbbool_t CFindEdgePair  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold1,  
cvbbool_t  PositiveEdge1,  
TEdgeResult &  Result1,  
double  Threshold2,  
cvbbool_t  PositiveEdge2,  
TEdgeResult &  Result2  
) 
Searches for an edge pair within an area using the contrast method.
If the image contains multiple edges, the positions of the two outer edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold1  Defines the threshold for the first edge (pixel data type dependent). 
[in]  PositiveEdge1  TRUE for positive edge (gradient); FALSE for negative edge (gradient). 
[out]  Result1  Contains, after successful execution, the position and quality of the first edge (see TEdgeResult for more information). 
[in]  Threshold2  Defines the threshold for the second edge (pixel data type dependent). 
[in]  PositiveEdge2  TRUE for positive edge (gradient); FALSE for negative edge (gradient). 
[out]  Result2  Contains, after successful execution, the position and quality of the second edge (see TEdgeResult for more information). 
TRUE
if an edge pair was detected, FALSE
otherwise.cvbbool_t CFindFirstEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
TEdgeResult &  Result  
) 
Finds the first edge within an Area using the contrast method.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold (pixel data type dependent). 
[in]  PositiveEdge  TRUE for finding a positive edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.cvbbool_t CSFindAllEdges  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
size_t  MaxEdges,  
PEdgeResult  pResult,  
size_t &  EdgeCount  
) 
Searches for all edges within an area using the contrast method with subpixel accuracy.
If the image contains multiple edges, the positions of all edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
The processing stops after MaxEdges number of edges and all others are ignored.
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold for all edges (pixel data type dependent). 
[in]  PositiveEdge  TRUE indicates a positive edge (gradient), FALSE a negative edge (gradient). 
[in]  MaxEdges  Defines the number of elements in the pResult array and thus the maximal number of edges to be found. 
[out]  pResult  Array in which, after successful execution, the positions and qualities of the found edges are written (see TEdgeResult for more information). 
[out]  EdgeCount  Number of edges found, where EdgeCount <= MaxEdges. 
TRUE
if at least one edge was detected, FALSE
otherwise.cvbbool_t CSFindEdgePair  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold1,  
cvbbool_t  PositiveEdge1,  
TEdgeResult &  Result1,  
double  Threshold2,  
cvbbool_t  PositiveEdge2,  
TEdgeResult &  Result2  
) 
Searches for an edge pair within an area using the contrast method with subpixel accuracy.
If the image contains multiple edges, the positions of the two outer edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold1  Defines the threshold for the first edge (pixel data type dependent). 
[in]  PositiveEdge1  TRUE for positive edge (gradient); FALSE for negative edge (gradient). 
[out]  Result1  Contains, after successful execution, the position and quality of the first edge (see TEdgeResult for more information). 
[in]  Threshold2  Defines the threshold for the second edge (pixel data type dependent). 
[in]  PositiveEdge2  TRUE for positive edge (gradient); FALSE for negative edge (gradient). 
[out]  Result2  Contains, after successful execution, the position and quality of the second edge (see TEdgeResult for more information). 
TRUE
if an edge pair was detected, FALSE
otherwise.cvbbool_t CSFindFirstEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
TEdgeResult &  Result  
) 
Finds the first edge within an Area using the contrast method with subpixel accuracy.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold (pixel data type dependent). 
[in]  PositiveEdge  TRUE for finding a positive edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.cvbbool_t OSFindAllEdges  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
TEdgePolarity  Polarity,  
EDGERESULTS &  Results  
) 
Searches for all edges within the Area with subpixel accuracy using the second derivation method.
If the image contains multiple edges, the positions of all edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold for all edges (image pixel data type dependent). 
[in]  Polarity  POLARITY_POSITIVE for a positive edge (gradient), POLARITY_NEGATIVE for a negative edge (gradient) and POLARITY_DONT_CARE for both type of edges. 
[out]  Results  Newly created EDGERESULTS object. 
TRUE
if all edges were detected, FALSE
otherwise.cvbbool_t OSFindBestEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
TEdgePolarity  Polarity,  
TEdgeResult &  Result  
) 
Finds the best edge within the Area with subpixel accuracy using the second derivation method.
The best edge is, depending on the polarity, defined by the highest, lowest or highest absolute quality of all edges in the area.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Polarity  POLARITY_POSITIVE for a positive edge (gradient), POLARITY_NEGATIVE for a negative edge (gradient) and POLARITY_DONT_CARE for both type of edges. 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.cvbbool_t OSFindEdgePair  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold1,  
TEdgePolarity  Polarity1,  
TEdgeResult &  Result1,  
double  Threshold2,  
TEdgePolarity  Polarity2,  
TEdgeResult &  Result2  
) 
Searches for an edge pair within the Area with subpixel accuracy using the second derivation method.
If the image contains multiple edges, the positions of the two outmost edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold1  Defines the threshold for the first edge (image pixel data type dependent). 
[in]  Polarity1  First edge polarity: POLARITY_POSITIVE for a positive edge (gradient), POLARITY_NEGATIVE for a negative edge (gradient) and POLARITY_DONT_CARE for both type of edges. 
[out]  Result1  Contains, after successful execution, the position and quality of the first edge (see TEdgeResult for more information). 
[in]  Threshold2  Defines the threshold for the second edge (image pixel data type dependent). 
[in]  Polarity2  Second edge polarity: POLARITY_POSITIVE for a positive edge (gradient), POLARITY_NEGATIVE for a negative edge (gradient) and POLARITY_DONT_CARE for both type of edges. 
[out]  Result2  Contains, after successful execution, the position and quality of the second edge (see TEdgeResult for more information). 
TRUE
if an edge pair was detected, FALSE
otherwise.cvbbool_t OSFindFirstEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
TEdgePolarity  Polarity,  
TEdgeResult &  Result  
) 
Finds the first edge within the Area with subpixel accuracy using the second derivation method.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold (image pixel data type dependent). 
[in]  Polarity  POLARITY_POSITIVE for a positive edge (gradient), POLARITY_NEGATIVE for a negative edge (gradient) and POLARITY_DONT_CARE for both type of edges. 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.cvbbool_t TFindAllEdges  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
size_t  MaxEdges,  
PEdgeResult  Result,  
size_t &  EdgeCount  
) 
Searches for all edges within an Area using the threshold method.
If the image contains multiple edges, the positions of all edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
The processing stops after MaxEdges number of edges and all others are ignored.
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold for all edges (pixel data type dependent). 
[in]  PositiveEdge  TRUE indicates a positive edge (gradient), FALSE a negative edge (gradient). 
[in]  MaxEdges  Defines the number of elements in the pResult array and thus the maximal number of edges to be found. 
[out]  Result  Array in which, after successful execution, the positions and qualities of the found edges are written (see TEdgeResult for more information). 
[out]  EdgeCount  Number of edges found, where EdgeCount <= MaxEdges. 
TRUE
if at least one edge was detected, FALSE
otherwise.cvbbool_t TFindEdgePair  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold1,  
cvbbool_t  PositiveEdge1,  
TEdgeResult &  Result1,  
double  Threshold2,  
cvbbool_t  PositiveEdge2,  
TEdgeResult &  Result2  
) 
Searches for an edge pair within the Area using the threshold method.
If the image contains multiple edges, the positions of the two outmost edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold1  Defines the threshold for the first edge (image pixel data type dependent). 
[in]  PositiveEdge1  TRUE indicates a positive first edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result1  Contains, after successful execution, the position and quality of the first edge (see TEdgeResult for more information). 
[in]  Threshold2  Defines the threshold for the second edge (image pixel data type dependent). 
[in]  PositiveEdge2  TRUE indicates a positive second edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result2  Contains, after successful execution, the position and quality of the second edge. 
TRUE
if an edge pair was detected, FALSE
otherwise.cvbbool_t TFindFirstEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
TEdgeResult &  Result  
) 
Finds the first edge within the Area using the threshold method.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold (Image pixel datatype dependent). 
[in]  PositiveEdge  TRUE for a positive edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.cvbbool_t TSFindAllEdges  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
size_t  MaxEdges,  
PEdgeResult  Result,  
size_t &  EdgeCount  
) 
Searches for all edges within an Area using the threshold method with subpixel accuracy.
If the image contains multiple edges, the positions of all edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
The processing stops after MaxEdges number of edges and all others are ignored.
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold for all edges (pixel data type dependent). 
[in]  PositiveEdge  TRUE indicates a positive edge (gradient), FALSE a negative edge (gradient). 
[in]  MaxEdges  Defines the number of elements in the pResult array and thus the maximal number of edges to be found. 
[out]  Result  Array in which, after successful execution, the positions and qualities of the found edges are written (see TEdgeResult for more information). 
[out]  EdgeCount  Number of edges found, where EdgeCount <= MaxEdges. 
TRUE
if at least one edge was detected, FALSE
otherwise.cvbbool_t TSFindEdgePair  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold1,  
cvbbool_t  PositiveEdge1,  
TEdgeResult &  Result1,  
double  Threshold2,  
cvbbool_t  PositiveEdge2,  
TEdgeResult &  Result2  
) 
Searches for an edge pair within the Area using the threshold method with subpixel accuracy.
If the image contains multiple edges, the positions of the two outmost edges are returned.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold1  Defines the threshold for the first edge (image pixel data type dependent). 
[in]  PositiveEdge1  TRUE indicates a positive first edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result1  Contains, after successful execution, the position and quality of the first edge (see TEdgeResult for more information). 
[in]  Threshold2  Defines the threshold for the second edge (image pixel data type dependent). 
[in]  PositiveEdge2  TRUE indicates a positive second edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result2  Contains, after successful execution, the position and quality of the second edge. 
TRUE
if an edge pair was detected, FALSE
otherwise.cvbbool_t TSFindFirstEdge  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
double  Threshold,  
cvbbool_t  PositiveEdge,  
TEdgeResult &  Result  
) 
Finds the first edge within the Area using the threshold method with subpixel accuracy.
The orientation of the Area defines the direction of edge detection. The coordinate system of the Image is used to transform the Area, but the resulting edge is returned in pixel coordinates (ignoring the coordinate system).
This function works with unsigned integer image planes (also with bit depths higher than eight).
This function is thread safe as long as the given Image is not changed while this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Index  Image plane index to be used. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[in]  Area  Area in the image where an edge is to be searched for. 
[in]  Threshold  Defines the threshold (Image pixel datatype dependent). 
[in]  PositiveEdge  TRUE for a positive edge (gradient), FALSE for a negative edge (gradient). 
[out]  Result  Contains, after successful execution, the position and quality of the edge (see TEdgeResult for more information). 
TRUE
if an edge was detected, FALSE
otherwise.