Foundation (CVCEdge.dll) 14.1

Functions  
void  GetAreaSize (IMG Image, TArea Area, cvbdensity_t Density, cvbdim_t *Width, cvbdim_t *Height) 
Returns the rectangular size of an Area. More...  
cvbbool_t  GetNormProjection (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, NORMPROJECTION &Projection, size_t MaxLen) 
Calculates the normalized projection of an Area. More...  
cvbbool_t  GetProjection (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area, PROJECTION &Projection, size_t MaxLen) 
Calculates the projection of an Area. More...  
cvbbool_t  WriteProjection (IMG Image, cvbdim_t Index, cvbdensity_t Density, TArea Area) 
Calculates the normalized projection of the area and writes the result into all rows of the area. More...  
void GetAreaSize  (  IMG  Image, 
TArea  Area,  
cvbdensity_t  Density,  
cvbdim_t *  Width,  
cvbdim_t *  Height  
) 
Returns the rectangular size of an Area.
Calculates the width and height, even if the Area is lying diagonally, taking account of any specified sampling density. The coordinate system of the Image is used to transform the Area,
The size corresponds to the distances of P0
, P1
and P0
; P2
altered by means of the sampling density.
This function is thread safe as long as the Image coordinate system is not changed as long as this function is running.
[in]  Image  Handle of image object to be processed. 
[in]  Area  Area to calculate size of. 
[in]  Density  Defines the processing density (0 < density <= 1000). 
[out]  Width  Width of the area in pixels. 
[out]  Height  Height of the area in pixels. 
cvbbool_t GetNormProjection  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
NORMPROJECTION &  Projection,  
size_t  MaxLen  
) 
Calculates the normalized projection of an Area.
The orientation of the Area defines the direction of the projection. The coordinate system of the Image is used to transform the Area.
This function works with unsigned integer image planes (also with bit depths higher than eight).
The necessary length of the Projection buffer can be determined via the GetAreaSize function. The processing stops after MaxLen number of projections whatever the size size of the Area.
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]  Projection  Pointer to a buffer of storage into which the projection values are to be written. 
[in]  MaxLen  Number of entries in the Projection buffer and thus the maximum number of entries to be written. 
TRUE
if succeeded, FALSE
otherwise.cvbbool_t GetProjection  (  IMG  Image, 
cvbdim_t  Index,  
cvbdensity_t  Density,  
TArea  Area,  
PROJECTION &  Projection,  
size_t  MaxLen  
) 
Calculates the projection of an Area.
The orientation of the Area defines the direction of the projection. The coordinate system of the Image is used to transform the Area.
This function works with unsigned integer image planes (also with bit depths higher than eight).
The necessary length of the Projection buffer can be determined via the GetAreaSize function. The processing stops after MaxLen number of projections whatever the size size of the Area.
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]  Projection  Pointer to a buffer of storage into which the projection values are to be written. 
[in]  MaxLen  Number of entries in the Projection buffer and thus the maximum number of entries to be written. 
TRUE
if succeeded, FALSE
otherwise.Calculates the normalized projection of the area and writes the result into all rows of the area.
This function offers a simple way of debugging projection operations, as the projection buffer can be displayed.
The orientation of the Area defines the direction of the projection. The coordinate system of the Image is used to transform the Area.
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. As it is writing into the Image beware that this can interfere with other functions working on the Image.
[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 for which the projection is to be calculated and written into the result. 
TRUE
if succeeded, FALSE
otherwise.