#include "ltwrappr.h"
virtual L_INT LBitmap::LevelsetBitmapRgn(LambdaIn, LambdaOut)
L_INT LambdaIn; |
the weight of moving the contour inside |
L_INT LambdaOut; |
the weight of moving the contour outside |
Performs semi-automatic segmentation (using the Levelset algorithm) by shrinking or expanding a contour represented by a region to the objects in the image.
Parameter | Description | |
LambdaIn | Represents the weight of moving the contour inside. The default value is 1. | |
LambdaOut | Represents the weight of moving the contour outside. The default value is 1. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
If the image has no region this function assumes a rectangular region that covers the image.
The Levelset algorithm finds the best-fitting contour that encapsulates the object.
Equal values for lambdaIn and lambdaOut allow the algorithm to decide whether to shrink or expand the selected region.
This function supports 12- and 16-bit grayscale and 48- and 64-bit color images.
This function supports signed/unsigned images.
Required DLLs and Libraries
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. |
Win32, x64.
Functions: |
LBitmap::OtsuThreshold, LBitmap::LambdaConnectedness, LBitmap::ShrinkWrapTool, LBitmap::WatershedBitmap, LBitmap::GWireGetMinPath, LBitmap::KMeansBitmapSegmentation, Class Members |
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
#if defined (LEADTOOLS_V19_OR_LATER)
L_INT LBitmap__LevelsetBitmapRgnExample(L_VOID)
{
L_INT nRet ;
LBitmap LeadBitmap ;
nRet = LeadBitmap.Load(MAKE_IMAGE_PATH(TEXT("IMAGE3.dcm")), 0,ORDER_BGR);
if(nRet !=SUCCESS)
return nRet ;
RECT MainRect ;
MainRect.left = 200 ;
MainRect.right = 300 ;
MainRect.top = 200 ;
MainRect.bottom = 250 ;
LBitmapRgn Region(&LeadBitmap);
nRet = Region.SetRgnRect(&MainRect);
if(nRet != SUCCESS)
return nRet ;
// found level set region
nRet = LeadBitmap.LevelsetBitmapRgn(1, 1) ;
if( nRet !=SUCCESS )
return nRet ;
return SUCCESS;
}
#endif // LEADTOOLS_V19_OR_LATER
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