Agfdhyk

Here is my code:

SimpleBlobDetector::Params params;

//Filter by Area

params.filterByArea = true;

params.minArea = 5000;              //Filters out areas less than 5000 pixels.

//Filter by Circularity.

params.filterByCircularity = true;  //Circle has circularity = 1.000

params.minCircularity = 0.79F;      //Square has circularity = 0.785

//Filter by Convexity

params.filterByConvexity = true;

params.minConvexity = 0.10F;

//Filter by Inertia

params.filterByInertia = true;

params.minInertiaRatio = 0.01F;



Ptr<SimpleBlobDetector> d = SimpleBlobDetector::create(params);

vector<KeyPoint> keypoints;

d->detect(processed_src, keypoints);

drawKeypoints(src, keypoints, im_with_keypoints, Scalar(0, 255, 0), DrawMatchesFlags::DRAW_RICH_KEYPOINTS);

I am drawing my information directly from SimpleBlobDetector tutorials for OpenCV versions >=3. I am receiving the following error being called from Ptr<SimpleBlobDetector> d = SimpleBlobDetector::create(params); Apparently, params is not being set properly. See the following error message:

E0312 - no suitable user-defined conversion from "cv::SimpleBlobDetector::Params" to "const std::string" exists

Can anyone explain why this is? I have used SimpleBlobDetector is past projects and have had no issues.