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2012-07-12 12:20:12 -0600	asked a question	How to add 2 Mat objects of different type? Hi all, When I run the following code: `const Mat A( 10, 20, CV_32FC1, Scalar::all(CV_PI) ); const Mat B( A.size(), CV_8UC1, Scalar::all(10) ); Mat C( A.size(), A.type() ); C = A + B;` I get the run-time error: OpenCV Error: Bad argument (When the input arrays in add/subtract/multiply/divide functions have different types, the output array type must be explicitly specified) in arithm_op, file /usr/local/src/OpenCV/modules/core/src/arithm.cpp, line 1269 So, is there a way to explicitly specify the output array type of A+B as float? Thanks