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Available in LEADTOOLS Document and Medical Imaging toolkits. |
LBitmap::MaxFilter (Document/Medical only)
#include "ltwrappr.h"
virtual L_INT LBitmap::MaxFilter(uDim=3, uFlags = 0)
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L_UINT uDim; |
/* dimensions of the neighborhood used for filtering (uDim x uDim), in pixels */ |
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L_UINT32 uFlags; |
/* flags */ |
Erodes dark objects in the class object's bitmap by the specified amount.
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Parameter |
Description |
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uDim |
Dimensions of the neighborhood used for filtering (uDim x uDim), in pixels. |
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uFlags |
Reserved for future use. Must be 0. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
This is a more controlled version of the omni-directional erosion filter that you can set with the LBitmap::BinaryFilter function.
The effect can be controlled by specifying the size of the neighborhood that is used for calculating each pixel value. For example, for 8x8, pass 8 in the uDim parameter. Each pixel is replaced with the maximum value of its neighborhood.
This function can process the whole image or a region of the image.
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
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LTDIS 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
Example
L_INT LBitmap__MaxFilterExample(LBitmap & Bitmap, L_TCHAR * szFileName)
{
L_INT nRet;
nRet =Bitmap.Load(szFileName);
if(nRet !=SUCCESS)
return nRet;
nRet =Bitmap.MaxFilter();
if(nRet !=SUCCESS)
return nRet;
return SUCCESS;
}