Ipp32f* image = new Ipp32f[height*width];
    IppiSize bigRoi = {width, height};    // the order!
    ippiConvert_16u32f_C1R(norg1, sizeof(WORDTYPE)*width, image, sizeof(Ipp32f)*width, bigRoi );
    //image.=image.*k+db;
    ippiMulC_32f_C1IR(k, image, sizeof(Ipp32f)*width, bigRoi );
    ippiSubC_32f_C1IR(db, image, sizeof(Ipp32f)*width, bigRoi );
    ippiConvert_32f16u_C1R( image, sizeof(Ipp32f)*width, processed.ptr, sizeof(unsigned short)*width, bigRoi, ippRndNear );