obszoenling's profile - activity

I use the distance transform + watershed algorithm to segment objects in images. For that I use this example code: docs.opencv.org/3.1.0/d2/dbd/tutorial_distance_transform.html

Like in the example above in some cases there is background surrounded by objects which leads to mistakes. I want this pieces of background to be ignored from the algorithm. Is there any possibilty to archieve that? Every pixel of the image with the values 0/0/0 should be ignored.

It says: CMake Error: The source directory "C:/opencv" does not appear to contain CMakeLists.txt.

I have some trouble installing the further opencv modules. I'm working with MVS2015 and openCV 3.2 on Windows. I installed openCV by adding opencv to the System PATH and giving each Visual Studio Projects the additional include directories. (C:\opencv\build\include, C:\opencv\build\x64\vc14\lib, opencv_world310d.lib;%(AdditionalDependencies)) It works fine so far. Now I need the modules from opencv_contrib. I downloaded them but I am not sure how to handle their installation. I found out that CMake is usually used for it. But I am not familiar with it. By trying it following Error appears:

CMake Error at CMakeLists.txt:93 (project): No CMAKE_CXX_COMPILER could be found.

The fact that I use opencv in normal c++-projects makes this error seems strange. I am grateful for every advise solving that problem.