The FilterMedian function/method of the BiFilter DLL/OCX filters the image using a nonlinear median filter method, and is useful for removing noise from scanned or faxed images.
[C++]
/* Applying a median filter to an image*/
#include “BiFilter.h”
#include “BiImage.h”
HDIB hDibNew;
/* 1. parameter: Handle of the DIB to filter
2. parameter: Size of the square mask
3. parameter: Show progress
4. parameter: Handle of parent window */
hDibNew = FilterMedian(hDib, 5, DISPLAY_BOTH,
AfxGetMainWnd()->m_hWnd);
if (!hDibNew)
{
// Error
}
[VB]
‘ Applying a median filter to an image
Dim BIFilterObj as Object
Dim hDibNew as Long
Set BIFilterObj = CreateObject("BIFILTER.BIFilterCtrl.1")
‘ 1. parameter: Handle of the DIB to filter
‘ 2. parameter: Size of the square mask
‘ 3. parameter: Show progress
‘ 4. parameter: Handle of parent window
hDibNew = BIFilterObj.FilterMedian(hDib, 5, DispBoth, hWnd)
Set BIFilterObj = Nothing
If hDibNew = 0 Then
‘ Error
End If
[C#]
/* Applying a median filter to an image*/
int hDibNew;
/* 1. parameter: Handle of the DIB to filter
2. parameter: Size of the square mask
3. parameter: Show progress
4. parameter: Handle of parent window */
hDibNew = BiFilter.FilterMedian(hDib, 5, Convert.ToInt16(BIFILTERLib.enumDisplayModes.DispBoth),
Handle.ToInt32());
if (hDibNew == 0)
{
// Error
}