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void blendWithMask(cv::Mat &base, cv::Mat &src, cv::Mat &mask, cv::Mat &out){ | |
char ch = base.channels(); | |
double alpha = 0; | |
for( int y = 0; y < base.rows; y++ ){ | |
uchar* pBS = base.ptr<uchar>(y); | |
uchar* pSR = src.ptr<uchar>(y); | |
uchar* pMK = mask.ptr<uchar>(y); | |
uchar* pOU = out.ptr<uchar>(y); | |
for( int x = 0; x < base.cols*ch; x++ ){ | |
int ix = x / ch; | |
if(pMK[ix] == 255){ | |
pOU[x] = pBS[x]; | |
} else if(pMK[ix] == 0){ | |
pOU[x] = pSR[x]; | |
} else { | |
alpha = pMK[ix] / 255.0; | |
pOU[x] = pSR[x] * (1-alpha) + pBS[x] * alpha; | |
} | |
} | |
} | |
} |
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