Improve Line removal on poor documents.

Hi,


I'm tring to use LineRemove with very poor images and as a result I have also very poor results... :)

So I have an idea but I don't find the way to do it. Please help me.

What I want to do is copy the original image, dilate some times, then erode, and apply delete lines to this awfull image with very good lines, and then with the region built by the lineRemove method, apply some combine to the original image to delete the lines by pixel XOR over the poor image.

Is this possible, could it be done?, what is the way to extract an image from the region.

here is some code.

L_INT nRet;
LBitmapBase LeadBitmap; /* Bitmap handle to hold the loaded image */
nRet =LeadBitmap.Load (.....);
if(nRet !=SUCCESS)
return nRet;
LBitmap workbench;
workbench.copy( &LeadBitmap );


workbench.BinaryFilter( BFLT_DILATION_OMNI );
workbench.BinaryFilter( BFLT_DILATION_OMNI );



BITMAPHANDLE   bitmapRegion;
                    memset( &bitmapRegion, 0, sizeof(BITMAPHANDLE));

LINEREMOVE                lr;
                    memset ( &lr, 0, sizeof ( LINEREMOVE ) ) ;
                    lr.uFlags                = flags;
                    lr.uStructSize            = sizeof(LINEREMOVE);
                    lr.uBitmapStructSize    = sizeof(BITMAPHANDLE);
                   
                    lr.iMaxLineWidth        = lineWidth;
                    lr.iMinLineLength        = lineLength;
                    lr.iWall                = wallHeight;
                    lr.iMaxWallPercent        = maxWallPercent;
                    lr.uRemoveFlags            = directionEnum;
                    lr.iGapLength            = gapLength;
                    lr.iVariance            = lineVariance;
                    lr.hRgn                    = NULL;
                    lr.pBitmapRegion        = &bitmapRegion;

workbench.LineRemove( &lr );

....

Now is supposed that bitmapRegion contains the deleted lines, but I don't know how to build an image with this region in order to combine it with te original image..

please help me!.

Best regards.

To combine only a portion of an image, use the LBitmapBase::Combine method.  If you have a region selected in the source image, the Combine method will only combine that portion of the image.  For a flat copy/paste, use the flags CB_DST_0 | CB_OP_ADD.