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I am new to opencv and cmake. I really need some instructions on building modified source code. I cloned master branch from github.

I need to add some output functions to opencv/modules/imgproc/src/grabcut.cpp. Let's say I just added some print functions in the source code. How could I build it without having to build the entire imgproc module? Which cmake file should I modify to implement this?

Another question is after I build source code, how could I use grabcut.cpp outside opencv library? It uses some "private headers" which prevent me from using it outside opencv's library.

Thanks so much for your help!

I am new to opencv and cmake. I really need some instructions on building modified source code. I cloned master branch from github.

I need to add some output functions to modified opencv/modules/imgproc/src/grabcut.cpp. Let's and wants to write another class lets say class run_grabcut in opencv/test.cpp using the modified version. Would you please give me 2 examples:

1. what files should I just added some print functions include in the source code. How could I build it without having to build the entire code imgprocopencv/test.cpp?

2. Which CMakeList module? Which cmake file should I modify to implement this?

   Another question is after I build source code, how could I use a grabcut.cpptest.cpp outside opencv library? It uses some "private headers" which prevent target so that I can only run this file? Would you please give me from using it outside opencv's library.an example of this CMakeList?

Thanks so much for your help!

I am new to opencv and cmake. I really need some instructions on building modified source code. I cloned master branch from github.

I modified opencv/modules/imgproc/src/grabcut.cpp and wants to write another class lets say class run_grabcut in opencv/test.cpp using the modified version. Would you please give me 2 examples:

1. what files should I include in the source code opencv/test.cpp?

2. Which CMakeList should I modify to build a test.cpp target so that I can only run this file? Would you please give me an example of this CMakeList?

Thanks so much for your help!