L_AutoLineRemove

Summary

Detects and removes the straight lines from the document image.

This function is available in the Document and Medical Imaging toolkits.

Syntax

#include "l_bitmap.h"

L_LTIMGCOR_API L_INT L_AutoLineRemove(pBitmap)

Parameters

pBITMAPHANDLE pBitmap

Pointer to the bitmap handle referencing the bitmap on which to perform line removal.

Returns

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

Comments

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 internally converts image into 1-bit black and white images.

This function does not support region.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

This example loads a bitmap and applies auto line remove filter.

L_INT AutoLineRemoveFilterBitmapExample(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 auto line remove filter to remove vertical and horizontal lines */ 
    nRet = L_AutoLineRemove(&LeadBitmap); 
    if(nRet !=SUCCESS) 
    { 
        //free bitmap 
        if(LeadBitmap.Flags.Allocated)   
            L_FreeBitmap(&LeadBitmap); 
        return nRet ; 
    } 
 
    nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL); 
 
    //free bitmap 
    if(LeadBitmap.Flags.Allocated)   
        L_FreeBitmap(&LeadBitmap); 
 
    return nRet; 
} 

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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.