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I follow the steps and when I press configure the second time I get errors (see my update post).

Hi,

I have installed the openCV 3.2.0 and now I want to install the extra modules (xfeatures2d). What is the easy way to install it ?

Thanks

UPDATE:

I follow the steps and when I press configure the second time I get errors:

CMake Error at cmake/OpenCVUtils.cmake:1043 (file): file DOWNLOAD cannot open file for write. Call Stack (most recent call first): opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include)

CMake Error at cmake/OpenCVUtils.cmake:1047 (message): Failed to download . Status= Call Stack (most recent call first): opencv_contrib-master/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download) opencv_contrib-master/modules/dnn/CMakeLists.txt:5 (include)

Configuring incomplete, errors occurred! See also "/Users/rbfigueira/Desktop/Crazyflie/opencv-3.2.0/build/CMakeFiles/CMakeOutput.log". See also "/Users/rbfigueira/Desktop/Crazyflie/opencv-3.2.0/build/CMakeFiles/CMakeError.log

Hi berak I saw all the tutorials from that link and I didn't find any with the Algorithm class. Sorry but I am newbie on openCV ... can you please simple convert one of them to know what I have to do ? thanks

Yes you are right. I am using opencv-3.2.0. Do you know any simple the work around ? Many Thanks!

Hi,

I have this errors on cv::Algorithm - Expected '(' for function-style cast or type construction - No member named 'create' in 'cv::Algorithm')

Here is the code:

//Initialise detector, descriptor, matcher
detector = cv::Algorithm::create<cv::FeatureDetector>(detectorType.c_str());
descriptorExtractor = cv::Algorithm::create<cv::DescriptorExtractor>(descriptorType.c_str());
descriptorMatcher = cv::DescriptorMatcher::create(matcherType.c_str());
std::vector<cv::String> list;
cv::Algorithm::getList(list);

Showing All Errors:

detector = cv::Algorithm::create<cv::FeatureDetector>(detectorType.c_str());

Expected '(' for function-style cast or type construction No member named 'create' in 'cv::Algorithm'

descriptorExtractor = cv::Algorithm::create<cv::DescriptorExtractor>(descriptorType.c_str());

Expected '(' for function-style cast or type construction No member named 'create' in 'cv::Algorithm'

cv::Algorithm::getList(list);

No type named 'getList' in 'cv::Algorithm'

What I have to do ? Many Thanks