#include "l_bitmap.h"

L_LTIMGCOR_API L_INT L_DocumentSegmentBitmap(pBitmap, AlmostBalckAndWhite, Flags)


pointer to the bitmap handle

L_BOOL* AlmostBalckAndWhite;

pointer to L_BOOL variable that shows whether the image is almost black and white or not

L_UINT Flags;


Specifies if the input image is almost black and white or not.

Parameter Description
pBitmap Pointer to the bitmap handle that references the bitmap to be affected.
AlmostBalckAndWhite True if the image is almost black and white, Otherwise, False.
Flags Reserved for future use. Must be 0.


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


This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.

This function supports 8, 12 and 16-bit grayscale and 24, 48 and 64-bit color images.

Required DLLs and Libraries

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, Linux.

See Also

Functions: L_DeskewBitmap, L_InvertedPageBitmap
Topics: Removing Noise


This example loads a bitmap and applies document segment bitmap filter.

L_INT DocumentSegmentBitmapExample(L_VOID) 
    L_INT nRet; 
    BITMAPHANDLE LeadBitmap;   /* Bitmap handle to hold the loaded image. */ 
    /* Load the bitmap, keeping the bits per pixel of the file */ 
    nRet = L_LoadBitmap (MAKE_IMAGE_PATH(TEXT("clean.tif")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); 
    if(nRet != SUCCESS) 
        return nRet ; 
    /* Apply document segment bitmap filter */ 
    L_BOOL AlmostBalckAndWhite ; 
    nRet = L_DocumentSegmentBitmap(&LeadBitmap, &AlmostBalckAndWhite, 0); 
    //free bitmap 
    return nRet ; 

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