Method setMatrix

source/backend/cpu/CPUImageProcess.hpp:31–35

        }
    }
    void setMatrix(CV::Matrix m) {
        transform = m;
        transform.invert(&transformInvert);
        mImgProc->setMatrix(m);
    }
    void setPadVal(uint8_t val) {
        paddingValue = val;
        mImgProc->setPadding(val);