Performs image segmentation using a special region-growing algorithm called Lambda Connectedness.


#include "ltwrappr.h"

virtual L_INT LBitmap::LambdaConnectedness(lambdaVal)


L_INT lambdaVal

Represents Lambda factor. Possible values are range from 1 to 1000. The default value is 950.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


Lambda-connectedness is a technique used to find the connectivity between an image's pixels and then clusters them into groups.

Low values for lambda can result in one region.

High values for lambda can result in an over-segmented image.

This function supports 12- and 16-bit grayscale and 48- and 64-bit color images.

This function supports signed/unsigned images.

Lambda Connectedness Function - Before

Lambda Connectedness Function - Before

Lambda Connectedness Function - After

Lambda Connectedness Function - After

View additional platform support for this Lambda Connectedness function.

Required DLLs and Libraries


Win32, x64.

See Also


#if defined (LEADTOOLS_V19_OR_LATER) 
L_INT LBitmap__LambdaConnectednessExample(L_VOID) 
    L_INT nRet ; 
    LBitmap LeadBitmap ; 
    nRet = LeadBitmap.Load(MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\NaturalFruits.jpg")), 0,ORDER_BGR); 
    if(nRet !=SUCCESS) 
        return nRet ; 
    // apply lambda filter 
    nRet = LeadBitmap.LambdaConnectedness(985); 
    return nRet ; 
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