IMVLinFilter

IMVLinFilter

The IMVLinFilter interface is used to control the filter's image processing algorithm. Read the filter description to see how the filter is used.

get_FilterType	Returns the type of linear filter in use.
put_FilterType	Sets the type of linear filter to use.
get_CombinationMethod	Returns the combination method for multi kernel filter types.
put_CombinationMethod	Sets the combination method for multi kernel filter types.

Header file: iMVLinFilter.h
Interface definition language file: iMVLinFilter.idl
Typelib: MVLinFilter
Interface ID: IID_IMVLinFilter

HRESULT get_FilterType( [out, retval] int *piType );

Returns the type of linear filter in use.

Parameter:

piType

A pointer to an integer value that receives the linear filter kernel type as MV_LINFILTER_TYPE.

HRESULT put_FilterType( [in ] int iType );

Sets the type of linear filter to use.

Parameter:

iType

Sets the linear filter kernel type as MV_LINFILTER_TYPE.

HRESULT get_CombinationMethod( [out, retval] int *piMethod );

Returns the combination method for multi kernel filter types. This filter supports two multi kernel types, Sobel (horizontal and vertical) and Prewitt (horizontal and vertical).

Parameter:

piMethod

A pointer to an integer value that receives the combination method as MV_LINFILTER_COMBINATION.

HRESULT put_CombinationMethod( [in ] int iMethod );

Sets the combination method for multi kernel filter types. This filter supports two multi kernel types, Sobel (horizontal and vertical) and Prewitt (horizontal and vertical).

Parameter:

iMethod

Sets the combination method as MV_LINFILTER_COMBINATION.

Filter specific structures and enumerators

typedef enum _MV_LINFILTER_COMBINATION
{
    MV_LINFILTER_COMBI_SUM= 0,
    MV_LINFILTER_COMBI_MAX,
    MV_LINFILTER_COMBI_NORM,
    MV_LINFILTER_COMBI_AND,
    MV_LINFILTER_COMBI_OR,
    MV_LINFILTER_COMBI_XOR
} MV_LINFILTER_COMBINATION;

typedef enum _MV_LINFILTER_TYPE
{
    MV_LINFILTER_PREWITT_3x3_V=0,
    MV_LINFILTER_PREWITT_3x3_H,
    MV_LINFILTER_SOBEL_3x3_V,
    MV_LINFILTER_SOBEL_3x3_H,
    MV_LINFILTER_LAPLACIAN_3x3,
    MV_LINFILTER_LAPLACIAN_5x5,
    MV_LINFILTER_GAUSSIAN_3x3,
    MV_LINFILTER_GAUSSIAN_5x5,
    MV_LINFILTER_HIPASS_3x3,
    MV_LINFILTER_HIPASS_5x5,
    MV_LINFILTER_SHARPEN_3x3,
    MV_LINFILTER_SOBEL_COMBINED,
    MV_LINFILTER_PREWITT_COMBINED
} MV_LINFILTER_TYPE;