LBitmap::AverageFilter

#include "ltwrappr.h"

virtual L_INT LBitmap::AverageFilter(uDim=3, uFlags = 0)

L_UINT uDim;

size of the averaging neighborhood

L_UINT32 uFlags;

flags

Changes the color of each pixel in the class object's bitmap to the average color of pixels in its neighborhood. This results in a blur effect.

Parameter

Description

uDim

Size of the averaging neighborhood. It is the length, in pixels, of one side of a square.

uFlags

Reserved for future use. Must be 0.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

You control the amount of blur by specifying the size of the neighborhood that is used for averaging.

To update a status bar or detect a user interrupt during execution of this function, refer to LBase::EnableStatusCallback.

This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.

This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.

Required DLLs and Libraries

LTDIS
LTFIL
LTIMGEFX

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions:

LBitmap::Fragment, LBitmap::UnsharpMask, LBitmap::BricksTexture, LBitmap::Deskew, LBitmap::DiffuseGlow, LBitmap::GlowFilter, LBitmap::HalfTonePattern, LBitmap::HighPassFilter, LBitmap::MaskConvolution, LBitmap::Perspective, LBitmap::PlasmaFilter, LBitmap::Pointillist, LBitmap::Sharpen, LBitmap::Posterize, LBitmap::Mosaic, LBitmap::Emboss, LBitmap::AddNoise, LBitmap::MedianFilter, LBitmap::IntensityDetect, LBitmap::SpatialFilter, LBitmap::BinaryFilter, LBitmap::MaxFilter, LBitmap::MinFilter, LBitmap::Oilify, LBitmap::Solarize, LBitmap::WindowLevel, LBitmap::WindowLevelExt, Class Members

Topics:

Raster Image Functions: Filtering Images

 

Removing Noise

 

Raster Image Functions: Removing Noise

Example

L_INT LBitmap__AverageFilterExample() 
{ 
   L_INT nRet; 
   LBitmap m_Bitmap; 
   //Load the Image as its resolution 
   nRet =m_Bitmap.Load(MAKE_IMAGE_PATH(TEXT("sample2.cmp")), 0,ORDER_BGR); 
   if(nRet !=SUCCESS) 
      return nRet; 
   //Average Bitmap by 10 
   nRet =m_Bitmap.AverageFilter(10); 
   if(nRet !=SUCCESS) 
      return nRet; 
 
   m_Bitmap.Free(); 
   return SUCCESS; 
} 
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