Ari-Roda

        // determine padding for scanlines
        int old_padding = (4 - (bi.biWidth * sizeof(RGBTRIPLE)) % 4) % 4;
        
        float newbiWidth = newbi.biWidth; //make new width a float
        newbiWidth *= nn;                 //get downsize number
        newbiWidth = round(newbiWidth);   //round downsize number   
        int inewbiWidth = newbiWidth;

        int horizontal_pixels = round(bi.biWidth/newbiWidth);