Foundation (CVCEdge.dll) 14.1

Functions  
cvbbool_t  CopyDoubleBuffer (PROJECTIONEX Projection, pDoubleProjection pBuffer) 
Copies the content of the projection buffer of the given Projection object to the given pBuffer array. More...  
cvbbool_t  CopyLongBuffer (PROJECTIONEX Projection, pLongProjection pBuffer) 
Copies the content of the projection buffer of the given Projection object to the given pBuffer array. More...  
cvbbool_t  Derivation (PROJECTIONEX Pin, PROJECTIONEX &Pout) 
Calculates the derivation of the given projection Pin. More...  
cvbbool_t  Filter (PROJECTIONEX Pin, cvbval_t *kernel, size_t lSize, PROJECTIONEX &Pout) 
Applies a n x 1 filter kernel to the projection. More...  
cvbbool_t  GetLength (PROJECTIONEX Projection, size_t &Length) 
Gets the length of the projection buffer of the given projection object. More...  
cvbbool_t  GetNormProjectionEx (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, PROJECTIONEX &Projection) 
Calculates the advanced normalized projection of an area. More...  
cvbbool_t  GetProjectionEx (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, PROJECTIONEX &Projection) 
Calculates the advanced projection of an area. More...  
cvbbool_t  IsProjection (PROJECTIONEX Projection) 
Checks whether the given object handle points to a PROJECTIONEX object or not. More...  
cvbbool_t  Normalize (PROJECTIONEX Pin, PROJECTIONEX &Pout) 
Calculates the normalized projection. More...  
cvbbool_t  ReleaseProjection (PROJECTIONEX Projection) 
Decreases the reference count of an projection object. More...  
cvbbool_t  ShareProjection (PROJECTIONEX Projection) 
Increments the reference counter for the projection object. More...  
cvbbool_t  ZeroCrossings (PROJECTIONEX Projection, size_t lMaxCount, EDGERESULTS &Results) 
Detects the zero crossings in the given projection. More...  
cvbbool_t CopyDoubleBuffer  (  PROJECTIONEX  Projection, 
pDoubleProjection  pBuffer  
) 
Copies the content of the projection buffer of the given Projection object to the given pBuffer array.
Use this function to access the projection data directly. The given pBuffer must be large enough to contain the whole length. Use GetLength to retrieve the length of the projection you want to copy.
This function is only thread safe if only one thread works on the Projection object.
[in]  Projection  Handle of projection object to be processed. 
[in]  pBuffer  Pointer to an array of TDoubleProjection objects with at least GetLength entries. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t CopyLongBuffer  (  PROJECTIONEX  Projection, 
pLongProjection  pBuffer  
) 
Copies the content of the projection buffer of the given Projection object to the given pBuffer array.
Use this function to access the projection data directly. The given pBuffer must be large enough to contain the whole length. Use GetLength to retrieve the length of the projection you want to copy.
This function is thread safe.
[in]  Projection  Handle of projection object to be processed. 
[in]  pBuffer  Pointer to an array of TLongProjection objects with at least GetLength entries. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t Derivation  (  PROJECTIONEX  Pin, 
PROJECTIONEX &  Pout  
) 
Calculates the derivation of the given projection Pin.
To calculate the second derivation call this function twice.
This function is only thread safe if only one thread works on the Pin object.
[in]  Pin  Handle of projection object to be processed. 
[out]  Pout  Newly created, derived projection. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t Filter  (  PROJECTIONEX  Pin, 
cvbval_t *  kernel,  
size_t  lSize,  
PROJECTIONEX &  Pout  
) 
Applies a n x 1 filter kernel to the projection.
The filter kernel and its size is defined by the user.
This function is thread safe as long as no thread unsafe function is run in parallel to this one on the given Pin.
[in]  Pin  Handle of projection object to be processed. 
[in]  kernel  Pointer to the kernel to be used. 
[in]  lSize  Width of the kernel. 
[out]  Pout  Newly created, filtered projection. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t GetLength  (  PROJECTIONEX  Projection, 
size_t &  Length  
) 
Gets the length of the projection buffer of the given projection object.
This function is thread safe.
[in]  Projection  Handle of projection object to be processed. 
[out]  Length  Length of the buffer. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t GetNormProjectionEx  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
PROJECTIONEX &  Projection  
) 
Calculates the advanced normalized projection of an 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  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. 
[out]  Projection  Pointer to an PROJECTIONEX object that will be generated by the function. Attention: The object needs to be released afterwards. 
TRUE
if succeeded, FALSE
otherwise. cvbbool_t GetProjectionEx  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
PROJECTIONEX &  Projection  
) 
Calculates the advanced projection of an area.
To normalize the projection use the function Normalize or call GetNormProjectionEx instead.
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. 
[out]  Projection  This variable will contain a newly created PROJECTIONEX object. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t IsProjection  (  PROJECTIONEX  Projection  ) 
Checks whether the given object handle points to a PROJECTIONEX object or not.
[in]  Projection  Handle of object to be checked. 
TRUE
if object is an PROJECTIONEX handle, FALSE
otherwise.cvbbool_t Normalize  (  PROJECTIONEX  Pin, 
PROJECTIONEX &  Pout  
) 
Calculates the normalized projection.
To normalize a projection each projection value is divided by the number of pixels used to generate the projection value (divided by the height of the area).
This function is only thread safe if only one thread works on the Pin object.
[in]  Pin  Handle of projection object to be processed. 
[out]  Pout  New normalized PROJECTIONEX object. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t ReleaseProjection  (  PROJECTIONEX  Projection  ) 
Decreases the reference count of an projection object.
When the counter reaches zero the object will be destroyed and the memory is released.
The return value is different to the ReleaseObject
function: it always states TRUE
if the function call succeeded. It does necessary mean that the object is destroyed.
This function is thread safe.
[in]  Projection  Handle of PROJECTIONEX object to release. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t ShareProjection  (  PROJECTIONEX  Projection  ) 
Increments the reference counter for the projection object.
You share a Projection object if want to share ownership. Call ReleaseProjection if your component doesn't need the resource anymore.
This function is thread safe.
[in]  Projection  Handle of the PROJECTIONEX object to share. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t ZeroCrossings  (  PROJECTIONEX  Projection, 
size_t  lMaxCount,  
EDGERESULTS &  Results  
) 
Detects the zero crossings in the given projection.
This function is only thread safe if only one thread works on the Pin object.
[in]  Projection  Handle of projection object to be processed. 
[in]  lMaxCount  Defines the maximum number of zerocrossings returned by the function; size_t (1) to detect all. 
[out]  Results  Newly created EDGERESULTS object. 
TRUE
if succeeded, FALSE
otherwise.