Makefile to Compile OpenCV Code in C++ on Ubuntu/Linux

Question

I am learning OpenCV using Learning OpenCV book.

One problem I am facing while compiling the code is that I have to write a long command to compile and get the executabl

Answer 1

Create a file named makefile in your working directory that contains the following:

CFLAGS = $SHELL(pkg-config --cflags opencv)
LIBS = $SHELL(pkg-config --libs opencv)

facedetect : facedetect.cpp
    g++ $(CFLAGS) $(LIBS) -o $@ $<

Then when you want to compile you just type:

$ make

(To answer your PS - note that CMake is very different from make - for now you should probaby just use make.)