'ReadImageToCVMat' is not a member of 'caffe'

[adwardlee]

I included "caffe/util/io.hpp", but it shows that 'ReadImageToCVMat' is not a member of 'caffe'.I notice that there is #ifdef USE_OPENCV in "io.hpp" before "ReadImageToCVMat" function. Can someone help me? Thanks.

[tryckfel]

I have the same problem. I compiled Caffe with OpenCV, and all the tests pass, but when I try to access functions surrounded by #ifdef USE_OPENCV from my own C++ code they are not members of caffe/not declared in the scope. Other functions work just fine, it's only the OpenCV dependent functions that are not found.

Does anybody know what I'm doing wrong?

[tryckfel]

Okay, so it turns out that what fixed my problem was adding the following before the caffe-includes in my header file:

#define USE_OPENCV 1

Hope it works for you too @adwardlee !

[adwardlee]

@tryckfel Thank you for your reply. It works

[xzhangxa]

A little bit late, but it may help: use Caffe_DEFINITIONS inside your CMake files, so you don't need to modify your source code. And there're other macros defined in this CMake variable like USE_LMDB/USE_LEVELDB, using it is safer as more macros may be added in the future.