alpha_type       1487 modules/imgproc/src/imgwarp.cpp     void operator()(const buf_type** src, value_type* dst, const alpha_type* beta, int width ) const
alpha_type       1489 modules/imgproc/src/imgwarp.cpp         alpha_type b0 = beta[0], b1 = beta[1];
alpha_type       1690 modules/imgproc/src/imgwarp.cpp     typedef typename HResize::alpha_type AT;
alpha_type       1775 modules/imgproc/src/imgwarp.cpp     typedef typename HResize::alpha_type AT;