Method setMaskImg

PLogLin/PLogLin.cpp:220–221

    void setSrcImg(const Image *v) {_srcImg = v; }

    void setMaskImg(const Image *v,
                    bool maskInvert) {_maskImg = v; _maskInvert = maskInvert; }

    void doMasking(bool v) {_doMasking = v; }