LBitmap::Despeckle

#include "ltwrappr.h"

virtual L_INT LBitmap::Despeckle()

Removes speckles from the class object's bitmap. Typically, this function is used to clean up scanned images (such as FAX images). This function is available in Document/Medical toolkits only.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function removes 1-pixel speckles, and shrinks some larger speckles. Therefore, in some cases, larger speckles can be completely removed by running it more than once.

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
LTIMGCOR

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

See Also

Functions:

LBitmap::Fragment, LBitmap::UnsharpMask, LBitmap::BricksTexture, LBitmap::Deskew, LBitmap::DeskewExt, LBitmap::DiffuseGlow, LBitmap::GlowFilter, LBitmap::HalfTonePattern, LBitmap::HighPassFilter, LBitmap::MaskConvolution, LBitmap::Perspective, LBitmap::PlasmaFilter, LBitmap::Pointillist, LBitmap::Deskew, LBitmap::WindowLevel, LBitmap::DeskewCheck, LBitmap::BlankPageDetector, Class Members

Topics:

Raster Image Functions: Doing Geometric Transformations

 

Raster Image Functions: Filtering Images

 

Removing Noise

 

Raster Image Functions: Removing Noise

Example

L_INT LBitmap__DespeckleExample()
{
   L_INT nRet;
   LBitmap LeadBitmap;
   nRet =LeadBitmap.Load(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image1.cmp"), 0,ORDER_BGR);
   if(nRet !=SUCCESS)
      return nRet;
   nRet =LeadBitmap.Despeckle ();
   if(nRet !=SUCCESS)
      return nRet;
   return SUCCESS;
}