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GFL Filters

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gflAverage

The gflAverage function : 

GFL_ERROR gflAverage(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflSoften

The gflSoften function : 

GFL_ERROR gflSoften(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 percentage
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
percentage
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflBlur

The gflBlur function : 

GFL_ERROR gflBlur(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 percentage
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
percentage
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflGaussianBlur

The gflGaussianBlur function : 

GFL_ERROR gflGaussianBlur(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflMaximum

The gflMaximum function : 

GFL_ERROR gflMaximum(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflMinimum

The gflMinimum function : 

GFL_ERROR gflMinimum(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflMedianBox

The gflMedianBox function : 

GFL_ERROR gflMedianBox(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflMedianCross

The gflMedianCross function : 

GFL_ERROR gflMedianCross(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 filter_size
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter_size
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflSharpen

The gflSharpen function : 

GFL_ERROR gflSharpen(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  GFL_INT32 percentage
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
percentage
To do.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEnhanceDetail

The gflEnhanceDetail function : 

GFL_ERROR gflEnhanceDetail(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEnhanceFocus

The gflEnhanceFocus function : 

GFL_ERROR gflEnhanceFocus(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflFocusRestoration

The gflFocusRestoration function : 

GFL_ERROR gflFocusRestoration(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEdgeDetectLight

The gflEdgeDetectLight function : 

GFL_ERROR gflEdgeDetectLight(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEdgeDetectMedium

The gflEdgeDetectMedium function : 

GFL_ERROR gflEdgeDetectMedium(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEdgeDetectHeavy

The gflEdgeDetectHeavy function : 

GFL_ERROR gflEdgeDetectHeavy(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEmboss

The gflEmboss function : 

GFL_ERROR gflEmboss(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflEmbossMore

The gflEmbossMore function : 

GFL_ERROR gflEmbossMore(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.

gflConvolve

The gflConvolve function applies a convolution matrix on a picture. 

GFL_ERROR gflConvolve(
  GFL_BITMAP* src,  
  GFL_BITMAP** dst,  
  const GFL_FILTER* filter
);

Parameters

src
Pointer to a GFL_BITMAP structure.
dst
Address of a pointer to a GFL_BITMAP structure. NULL if on the same instance.
filter
Pointer to a GFL_FILTER structure.

Return value

The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.
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